Use Seafoam at the rate of One Ounce of seafoam per Gallon of gasoline. I’ve used Seafoam for forty years. This additive can harm your engine’s fuel system, if not treated properly. Lots of people use Seafoam and Stabil through their pwc without any issues, but I am not a fan. It does help to restore about 15 %of lost mileage every 3 months due to partially blocked injectors. I especially like to use Seafoam for storing generator gas. It runs about $8 to $9 per container and that treats a lot of fuel. Re: How can I clean Varnish out of a Gas Tank? in reply to jal-SD, 05-27-2011 20:06:43 Quoting Removed, click Modern View to see Thank you su much for the info. Water residue can be a problem for fuel injectors and carburetors. For cleaning, use 2 or more ounces per gallon – the more you add to fuel, the better it cleans! Add when the tank is low to maximize cleaning concentration. I use Seafoam all year. Keeps the engine humming. At the end of the season I try not to have much gas in the tank but what is there is treated with Seafoam. If you use regular fuel and your oil is injected into the engine without pre mixing it into your fuel, use 1 ounce per gallon. let it sit 20 min. There are 3 ways to use seafoam. Let sit for a few. Will not void warranty. Give it a try. Add some to your tank before you start adjusting the idle. i use seafoam routinely twice a year through gas tank, as maintenance for clean gas lines, injectors, etc. You can put it in your gas tank and run a few tanks of gas. At the end of the season I try not to have much gas in the tank but what is there is treated with Seafoam. Overall, I prefer to use Berryman's Chem-Tool in crankcases and Chevron's Techron to clean injectors and combustion chambers. Some sloshing around in the Land Cruisers tank as we speak. I always use Sta Bil in all my gas cans for the mowers, weedeater, and blower. Drain this into the old gas you have in the fuel caddy. Marvel Mystery Oil vs. An old sheet will work even better. EVERYTHING that the shit ethanol touched now leaks. You're only supposed to use a 1/3 of the can in the oil, then let it run for a few to cycle through the oil so it thins it out and cleans the gunk off the crank and all. The main use for it is to prepare the scooter for the winter, or any long period of non-use. Fill the gas tank. I think I put some Stabil in it a couple of years ago and a half a can of Sea Foam in it this summer. The car felt smoother, though it could have been a placebo affect. If your fuel is mixed with oil in a container, then added to your fuel tank, use 2 ounces Sea Foam for every gallon of the mix. Seafoam's product instructions clearly state that 16oz treat 8-24gallons of gas (4 stroke engines) or an average of 1oz per gallon. Types of gas for snowmobiles. I doubt the seafoam by itself is the issue. Weingartz Many of us use fuel stabilizers in our machines when we store them for the off-season in the hopes of having an easier time starting them when the time comes. In addition to this, if there is water in your gas tank, the Seafoam should help to eliminate that as well, which is a nice bonus. This is a must to replace spark plug wires, not so much if you are just doing spark plugs 1 I pulled the main fuse 2 remove seat 3 disconnect fuel line ( push up on the collar pull down on the line) 4 On the left front bottom of the tank lightly pull on wire that runs to fuel gauge and un plug it ( I believe the manual says to draw the fuel gauge out of the tunnel to unplug it , IMO too much. Frequent use keeps the moisture from the air that modern ethanol-laced fuel will pull into the tank from getting a hold. I use Seafoam with 2 oz. i use seafoam on my maxima and never saw an ill side effect. My car is due for a oil change so I put a can of Seafoam into the gas tank and filled up to a half tank of gas. How much should I put in the motorcycle Gas tank? Have you had any experience using. At their suggestion, I have used it in all of my equipment for engines that use straight gas and for the ones that use a gas/oil mix. We are forced to use E 10. I will probably use Berryman's for my next carb clean on the Explorer when the time comes just to compare results with Seafoam. 701 in a FX1. Hello all, I have a 1992 pathfinder with everything original expects belts brakes filters and starter. Seafoam will get clean the engine without inferring with the fuel or oil. Store in well sealed metal has cans and your good for years. (He is the one that not only repairs them but has to constantly do octane testing on the gas to make sure it complies with state. Thanks for your feedback!. I put some in the oil about 50 miles before I change it. HEET® is a fuel additive that is made for removing water from the gas tank. 5 gallon tank. I bet the amount required to hydro lock an engine would be pretty similar between water, Seafoam, and gas. I plan to so the cam swap on my FD590V soon and thought about seafoam in the crank case for a little while prior to dissembling the engine. Once the gas is all, or almost all out, then use your additives described here. My dealer suggested performing an injector cleaning using Seafoam for $35. The truck was running rough. We use the latest state-of-the-art equipment, techniques, and chemical tank cleaners developed in-house by our ongoing R&D program. I'll add the suggested amount of Seafoam, and Stabil in my gas cans before filling. This will stabilize the fuel for up to two years. I use Seafoam in my motorcycles, truck, lawn mower, weed eater, generator and all my gas cans that I have. Seafoam is a great way to de-gunk your engine. I've read alot about the qualities of seafoam when used in the gas tank to clean carbs. I think the baffles inside the tank made it hard for the radiator shop to do a good job. per gallon of gas. How to Use Fuel Stabilizer. (2 and 4 strokes). Once that can goes in the tank, it's fixed. then filled the carb thru the vent and poured all over carb. How to Use Catalytic Converter Cleaner Using the cleaner is very simple, and it certainly beats paying to replace the part entirely. Seafoam Additive: Gas & Oil I spoke with "Dick" who assurred me that the product was 100% petroleum and totally harmless tt all internal engine and transmission componants. Anyone using Seafoam AND MMO at the same time in their LawnBoys or Trimmers and 2 cycle leaf blowers. Seafoam has a wide range of applications in gas and diesel engines. Okay, so I've seen a few of you talk about SeaFoam--can somebody tell me what the best way to make use of it is? I picked up a bottle and ran it through with a tank of gas but I keep hearing to use it in the "intake" etc. My dealer suggested performing an injector cleaning using Seafoam for $35. it has never ran better!. Of course if its at a certain stage the best thing to do for clogged injectors is to completely remove them then flush them out one at a time. Some sloshing around in the Land Cruisers tank as we speak. I don't runt he stuff religiously, in fact i probably only use about a can or 2 a year, however it goes into my gas before winter storage, and I use it every spring directly in the intake of all of my carburated motors. Mazda wants charge me $1100 clean out gas tank and replaced 11 aug 2015 we tell what it, does, how use properly. Use a flash light and look under the car. And you don't have to waste time and gas. The gas will begin to go stale, corrode, and form gummy deposits in the fuel tank, carburetor, fuel lines, and fuel filter. I always use Sta Bil in all my gas cans for the mowers, weedeater, and blower. what about just keeping it simple by just adding the whole can of seafoam into a full tank of gas and then just riding normally letting the seafoam just do its work with a full tank of gas? I have a Honda VTX 1800 C, and I don't really feel like taking off the gas tank disconnecting the fuel line and doing this whole complicated procedure. IE: A thrid in the tank, a third in the oil, a third in the vacuum hose. I add SeaFoam periodically. I'll saturate that last tank of gas with as much as suggested on the can, I'll add some to the oil too and drive with it for a day or two, and run a good bit through the throttle body. For cleaning, use 2 or more ounces per gallon – the more you add to fuel, the better it cleans! Add when the tank is low to maximize cleaning concentration. So, I looked at the Seafoam and decided to use it for my old 7. org that did a cleaning with it on the outbacks gas engine. I put some in the oil about 50 miles before I change it. Gas Treatment. Been using both for a long time and everything I own runs like a champ. Instead, you need to follow these three steps for maximum protection: Add measured stabilizer to tank. Anybody ever use Seafoam The Board. My Hyundai dealer also uses it. When deciding how to use Sea Foam Motor Treatment there are three options: in the crankcase, in the fuel tank, and in the diesel fuel filter. Works great on the musquito's too ;). We have found that it may not be best to use the same fuel stabilizer in your vehicle that you would use in your lawnmower or snowblower. It runs about $8 to $9 per container and that treats a lot of fuel. The use of this type of additive is necessary to avoid damage to your fuel system, especially if the engine is stored or used sporadically. I've used seafoam maybe 2-3 times. Using fuel stabilizer isn’t as simple as pouring a capful into the gas tank. This may seem like an expensive alternative to some drivers; however, the damage that you will be avoiding to your car is more than worth it. Oil Treatment: - Use about 1/3 of a can dumped into the oil filler tube about. i have been adding a full bottle of Seafoam to a full tank every fall prior to storage and changing oil at same time. Seafoam - do you use it? Sometimes I put that stuff in the gas tank and crankcase a week or two before an oil change to help clean things up, but I've never tried. The car felt smoother, though it could have been a placebo affect. A full tank will not allow this to happen. Or if you can, put some fuel stabilizer in the tank and run the car for a lil bit. SeaFoam seems to be the current 'hot' product (Mechanic in a Bottle is also pushed. n2Bimmer View Public Profile. This can save gas and give you more miles to the gallon. If you have a 2 stroke engine (must use mixed gas), run it out of gas in the fall. How to Use Sea Foam. Not sure exactly why, but I wont use it on my Wrx. Whether it’s your car, truck, boat, lawn mower, snow blower, chain saw, ATV or other motorized equipment, regular oil and fuel system care is important for engines used every day and for engines used less frequently. If you're running around out in the boondocks, seafoam is the stuff to have. Seafoam is pretty oily stuff. When deciding how to use Sea Foam Motor Treatment there are three options: in the crankcase, in the fuel tank, and in the diesel fuel filter. desel is very dirty!. ) Second, where I work they own over 200 Shell stations and the guy that works on the pumps told me something very interesting. I had a bad and very expensive experience with seafoam so I won’t use it or recommend it. The dealer invoice quoted Seafoam Part Number SF-16 which is the Seafoam Motor Treatment. The main use for it is to prepare the scooter for the winter, or any long period of non-use. Push the hose all the way into the tank below the gas level. 1/3 in the vacuum system, 1/3 in the tank, 1/3 in the oil (for 100 miles). Okay, here's my refined take on Seafoam: The solvents thin your oil, possibly causing premature engine wear, then they gradually evaporate. Do not siphon gas with your mouth. I put some sea foam in the gas tank because after 310,000 miles, I felt the injectors must be a little dirty. This can save gas and give you more miles to the gallon. Car ran like a champ on the test drive. Yes on the Seafoam. We discussed the fact that the KLR shared the same oil with both the engine and transmission. However, if there is more water in the. Every October on my last time to use my boat I make sure that the gas tank is topped off and I put the recommended amount of Sta-Bil in the gas tank. I'm on my 3rd tank of gas since I bought it. Run it through and hopefully it'll clear out. You can pour it in your oil, run the engine for 20 minutes then drain OR spray it in the intake tract until the engine stalls, wait for it to "fog" then start the car a few minutes later to a rather smoky show, and it will have cleaned out the intake/TB system. SeaFoam cost around $10 at Walmart and AutoZone. I religiously use Power Service diesel additive, but they were out of the white bottles that day. The smoke show however, was worth it. When using Sea Foam as a stabilizer, the manufacturer recommends adding 1 ounce of the product to every gallon of fuel in your lawnmower. If it doesn't start it was suggested to buy some carb cleaner. While Seafoam can technically be used with any octane gas, it is recommended that you use it with 91 octane or higher. When I bought the boat I hooked up a separate tank with good gas. Some of the gas in the tank is probably old. SeaFoam seems to be the current 'hot' product (Mechanic in a Bottle is also pushed. I still have some seafoam and your comment on doing it less frequently makes sense. I was having problems with my one older Wheel Horse, that would take forever to start. Seafoam is so 1970's Anyone who uses it, should really learn just what it is and what it can and can not do. I've always used seafoam. My ski's running a little rough. But I run fuel power now and get all of that. Here's the problem with seafoam. I performance improver in the gas tank and stabilizer for storing in the winter. I carry 3 or 4 cans as part of my toolkit, and use it anytime the Jeep decides it would like to idle rough/slow/fast/otherwise wonky. SeaFoam contains 10-20% IPA (Isopropyl Alcohol) which to me seems counter intuitive to be adding to E10 laced gasoline. Could have plugged your fuel filter with junk. I do use non-ethanol premium gas. This would be great if it works because not only would it fix immediate problems, but it would be an effective way to help keep your car in peak condition and avoid the build up that can wear it out. Anybody ever use Seafoam The Board. The key is to put it in a full tank of gas and burn the gas through the carbs within the next two days. I live in Minnesota, so my bikes get moth-balled for 3+ months, on average. Mazda wants charge me $1100 clean out gas tank and replaced 11 aug 2015 we tell what it, does, how use properly. Refill the gas tank with new, fresh gas - I'd recommend only about 1/4-tank in case you have to dump it again - and I'd add a little "dry gas" like you'd use for your car when you have water in. Is It Ever Okay to Use 87-Octane Gas? What Brand of Fuel Station Do You Visit? And When Do You Fill up? In a recent Corvette Forum thread, member tommykoz1998 asked a number of questions regarding everyone’s fueling tendencies. Seafoam may not be suitable for oxygen sensors and engines that have preexisting issues that need to be dealt with. Adding SeaFoam to the engine oil will prevent moisture buildup and remove engine sludge. I dropped the tank the Friday and cleaned it out and installed a new fuel pump and put a new fuel filter on while the car was on stands. Use a flash light and look under the car. The product also has great ratings and reviews from 'Consumer Reports' and various motorcycle enthusiasts magazines. I then road the next day to finish off the tank, filled again with fresh gas, and it now ran great. Also I add this to the "jerry can" every time I put gas in there to keep my lawn mower/gas snow blower etc running in good shape. Was just wondering how many of you use a product called SEA FOAM as a fuel additive and if you do is worth it or is it just a bunch of hype. Ever since then I use it in everything I own (mixed into the gas) and also in every scooter or trike I sell. The best way to remove all water from the gas tank is to drain and refill your gas tank. , gas tank, crank case and aspirated into throttle body) on my '88 4Runner which had ~300,000 miles on the odometer. Also have a small out building that we use for flammable liquid and. Within the week I had two O-2 sensors fail. I believe they poured some in the crankcase oil and in the fuel tank. Run it through and hopefully it'll clear out. Seafoam can do many odd things, one of which is making the oil fall out of suspension. Is too much seafoam bad in gas tank? I put 1 Pint of Seafoam (treats up to 25 gallons) and my tank is 18 gallons, is that bad? A mechanic put "Seafoam" in my gas. Engines we use daily have different treatment requirements than engines used weekly or monthly. I used it basically every oil change with my last car (honda) and liked it but not doing it on the Subie. Let the car run for a few minutes, but make sure the engine won't die - starting it may be hard after that! Drive the car for at least 15-20 miles, and after that change the oil. Dumped it all. Take 1 full can of Seafoam and dump it into your gas tank It is prefered that you do this while filling up at the gas station so the mixture isn't too strong Also when you are filling up your car, the gas will mix up the Seafoam in the tank as much as possible. Well, your question leaves a lot of room for interpretation. Simple as that. There are 3 ways to use seafoam. My car is due for a oil change so I put a can of Seafoam into the gas tank and filled up to a half tank of gas. Each way cleans a different area. We use the latest state-of-the-art equipment, techniques, and chemical tank cleaners developed in-house by our ongoing R&D program. I think i've got some build up in my fuel system. what about just keeping it simple by just adding the whole can of seafoam into a full tank of gas and then just riding normally letting the seafoam just do its work with a full tank of gas? I have a Honda VTX 1800 C, and I don't really feel like taking off the gas tank disconnecting the fuel line and doing this whole complicated procedure. "DISCLAIMER": No one takes any responsibility for any actions, fire, damage, theft, and or any other causes that may arise by performing this act. I was using seafoam because I had suspected that water had entered my gas tank either from a loose gas cap or from bad gasoline at the pump. Best of all, my lawnmowers can sit outside in the shed for months and will start right up first or second pull when the fuel has SeaFoam in it. Find Royal Purple Max-Clean Fuel System Cleaner & Stabilizer 11722 and get Free Shipping on Orders Over $99 at Summit Racing! Royal Purple Max-Clean Fuel System Cleaner & Stabilizer is a state-of-the-art performance fuel system cleaner that maximizes the performance of your fuel system. I do have a few friends that also run it in their boats. Every October on my last time to use my boat I make sure that the gas tank is topped off and I put the recommended amount of Sta-Bil in the gas tank. we put 1/3 in the gas tank, 1/3 slowly into the intake through hose we pulled off with the engine running and the other 1/3 in the crankcase just before an. Dump some in the carb and gas tank then turn the engine just enough to suck it in. In response to some advice I received here a few days ago, I have purchased some Seafoam additive to help clean out carbon deposits in my cylinders. Not all marina's are ethanol free, so make sure you ask. Seafoam is excellent as a fuel stabilizer. Note: Keep spare fuel filers on hand. I have been using Seafoam for a long time. Brought the mil light on in the dash. For cleaning, use 2 or more ounces per gallon – the more you add to fuel, the better it cleans! Add when the tank is low to maximize cleaning concentration. One thing I never knew until just recently is that Seafoam is also a stabilizer/preservative so now I'm just going to use it instead of the standard stabilizer I'd used before on things that sit. We're lucky here in MN to have non-ethanol premium available and I use it in all my wheelers and small engines. Seafoam says I can use it in the gas tank, vacuum line and crank case. Just putting something in the tank at this stage won't help that, because it can't get past the gas already in the line to the carb. Inside the fuel tank, Sea Foam absorbs water, allowing it to be burned up in the combustion chamber without issue. Try to fill the tank up all the way. Seafoam really doesn't do much, but smoke, when put through the intake. Unplug the line and put the line in the seafoam while reving your car to keep it from stalling. I do like Seafoam, though. In the gas tank, in the crank (oil pan), and inducted through a vacuum hose. Leaving a tank empty will always create condensation. Ran Half A Tank Of Gas And Engine Light Came On. Owners who drive their vehicles less often should add the treatment with every new tank of gas. I know it can be used in the gas tank, but I've always avoided that due to its oily consistency. I would buy some premium gas and put in a quarter to half a tank. Using fuel stabilizer isn’t as simple as pouring a capful into the gas tank. Push the hose all the way into the tank below the gas level. yeah I saw some jelled gas in the sediment bowl too, su looks like I'm gonna pour about 1/2 gallon of acetone in it. Ethanol-blended gas is especially prone to deterioration, leading to rust in the fuel tank, corrosion, gum build-up, and even severe engine damage. If you're thinking about cleaning your fuel system, check this out. IE: A thrid in the tank, a third in the oil, a third in the vacuum hose. Got new gas, added Lucas semi synthetic 2 cycle oil. I use it in my auto gas tank every once in a while. Don't overfill your tank though. Clear Symptoms of Water in a Car's Gas Tank and How to Fix It This post from WheelZine will tell you the ways in which water can enter the gas tank, its symptoms and effects, and also the means by which you can remove water from the gas tank. Run till tank nearly empty then refill and always fuel up at reputable stations. BTW, the only stupid question is the one the ISN'T asked. It’s recommended to add 0. 4L Ford F-150 gasser pickup. I always use Sta Bil in all my gas cans for the mowers, weedeater, and blower. Ever since then I use it in everything I own (mixed into the gas) and also in every scooter or trike I sell. I noticed that on the back of the can, that they recommend using it in the crankcase for cleaning, rejuvinating, etc. But I run fuel power now and get all of that. Use 9 or 10 oz's for a full tank. Obviously with the 3/4 to 7/8 tank of gas that's in there in November doesn't need replenishing (20 gal tank) until late March thru mid April, about 5 months, never a problem and that's even with the reformulated crud (another note, if you can use NON oxygenated fuel for storage, it'll hold up better) I've heard good and bad about Sta-bil from. It can reduce carbon build up, reduce ping, a rough idle, improve gas mileage and clean out your fuel system. Right now I have been using it in my 6 gallon external tank of gas for my boat motor. Code Reader Shows Bad First Bank O2 Sensor. To Magazine Home Page. It does help to restore about 15 %of lost mileage every 3 months due to partially blocked injectors. I use Seafoam with 2 oz. It's time we get to the bottom of how E10 is affecting our engines. If you fill the tank up and drain the carbs you don't need to use stabilizer, just drain the tank in the spring and put the gas in your car. Seafoam really doesn't do much, but smoke, when put through the intake. I've used seafoam maybe 2-3 times. Other Fuel Stabilizers work as well. I put Seafoam in the gas tank of a 1999 Mazda Miata and it ran fine for about 40miles and then it started sputtering and died and now i have a hard time even getting it started. 81c per gallon gas. we put 1/3 in the gas tank, 1/3 slowly into the intake through hose we pulled off with the engine running and the other 1/3 in the crankcase just before an. Fill the gas tank with the gasoline mixture. I would buy some premium gas and put in a quarter to half a tank. Also, at the beginning of the season I'll siphon out last season's gas and replace with fresh fuel, treated with M. In the few years since ethanol began to be widely used in the United States, a lot has been written about its properties, the problems it's created, and how to best cope with its possible effects. I think the timing of the fuel pump failure and the use of the seafoam might be related. I let it idle for an hour and it ran. Confident in my luck with Seafoam, I researched other successful fuel addictives and came across Lucas Fuel Treatment, I trust Lucas and their products so I picked up a little bottle of it at Walmart and was wondering how often should I add fuel additives. Engines we use daily have different treatment requirements than engines used weekly or monthly. I prefer to consistently use K100MG in my machines with every tank to keep phase separation and ethanol at bay. I find that it has a lot more cleaning properties than Stabil (although a good product). Biggest thing is to buy only clean gas, no alcohol or BS gas station additive in it. I Suppose That Is What Cooked My Sensor. (He is the one that not only repairs them but has to constantly do octane testing on the gas to make sure it complies with state. Let sit for a few. Car ran like a champ on the test drive. Fill the gas tank. Still use it in everything else. Shop How Use Seafoam In Gas Tank available for sale today on the internet. It can reduce carbon build up, reduce ping, a rough idle, improve gas mileage and clean out your fuel system. However it will disolve gum, varnish etc. This can help clean out injectors and gunk but isn't that ovious when it works unless there is a problem. They state in the site that no. and for the diesel people out there lucas fuel treatment I use it on every tank. In this process, your injectors are the main part you are cleaning. Had to run the whole tank out and fill with new to stop the back firing. 4L Ford F-150 gasser pickup. EVERYTHING that the shit ethanol touched now leaks. I use it (Seafoam) more for storing engines (put a couple teaspoons in the combustion chamber, spin over to lube the entire top end,and store at TDC) Should you store your bike (for say over a month) and use ethanol fuel, as a stabilizer, I use either "Gas Shok" or "K100": Gas-Shok Plus Gasoline Fuel Treatment â€¢ USA Fuel Service. The can says 1 oz per gallon of fuel. The neighborhood gas station has 10% ethanol and will go bad quickly. Except for Seafoam to get rid of any water in the car fuel tank in New Jersey. Read Reviews And This Stuff Gets Super Hot And Destroys Sensors. In the winter the truck and tractor get anti gelling agent. Pick up the gas can and swirl it in a circle to thoroughly mix the Sea Foam into the gasoline. This is a discussion on Gas tank interior coating within the Broken Arrow forums, part of the Gun Forum category; Has anyone here ever used this product to line the inside of a gas/fuel tank to prevent rust or corrosion?and if so, how happy were. it has never ran better!. You need a large bucket, preferably a five gallon one. Is this THE way to use Seafoam in your car? I have heard of putting it in a full tank of gas, and I have also heard of adding it to your oil in the crankcase to remove carbon deposits in the crank (note: only about 200 miles before an oil change). Overall, I prefer to use Berryman's Chem-Tool in crankcases and Chevron's Techron to clean injectors and combustion chambers. Seafoam may not be suitable for oxygen sensors and engines that have preexisting issues that need to be dealt with. There’s a lot of misconception out there about products like Seafoam, so let’s start with clarifying the purpose for the product, why you’ll want to use it, and how it’s used. Good price for Seafoam. I would use Seafoam, but just use one of them. How To Use Sea Foam. I get the gas down to a 1/4 tank and dump a can in there (about 300% stronger than they recommend) then pull off the brake booster vacuum hose and w/it at high idle spray a can of their pressurized version in through the intake until it loads up and dies. This may seem like an expensive alternative to some drivers; however, the damage that you will be avoiding to your car is more than worth it. I did a full seafoam treatment on my cage about 6 months ago and will never use anything else. SeaFoam is on sale this week at Farm and Fleet, $6. I put some sea foam in the gas tank because after 310,000 miles, I felt the injectors must be a little dirty. Added 4 oz of Seafoam to my gasoline tank. i use seafoam on my maxima and never saw an ill side effect. Berryman's chemtool is also a good cheap solvent based cleaner (non PEA though). Haven’t had any issues with this method of winterzation & gas. Knowing that I feel the best way to combat the issue is regular system cleaning. I am using seafoam now and started using it in every gas powered device that I own. Other Fuel Stabilizers work as well. I feel gas tank and vacuum line may be safer but crank case? Given the specific engine oil we need to use (LL01, etc), I don't feel comfortable putting it into the crankcase as it might change the properties of the oil. We're lucky here in MN to have non-ethanol premium available and I use it in all my wheelers and small engines. Here are the instructions for. In order to clean your boat fuel tank, you must first siphon out the gas that is left inside. A gas tank repair could go wrong if necessary safety precautions are not taken first. To fix a surging Honda lawn mower engine, clean the carburetor, gas tank and fuel filter. Based on your tank capacity first determine how many ounces of fuel treatment at 1 ounce per gallon of tank capacity you will need to treat a full tank of gas and then start putting capfulls of Seafoam into a measuring cup until it has the required amount to treat your fuel and if it is reasonable the just start putting that amount of capfulls. NOT Removing Old Fuel from the Gas Tank. I can't speak about Sea-Foam or the marine Sta-Bil, but I have use the regular Sta-Bil in my boat since 1997. It seemed to make a fair bit of difference with the way my bike accelerates and uses the throttle. Also put stabil in all my wheeler gas. Not that it is bad, especially if you run Sea Foam like some of use do. Fill the gas tank with the gasoline mixture. You can put it in your gas tank and run a few tanks of gas. Seafoam is excellent as a fuel stabilizer. I've searched the archives and found plenty of info on how to use seafoam but the one thing I cound't figure out was if I place seafoam in the fuel tank would it make a ton of smoke. Got new gas, added Lucas semi synthetic 2 cycle oil. Better than seafoam by far. As gas sits in a car's tank it can become varnish and the interior of the tank can oxidize, creating a real mess inside. Marvel Mystery Oil vs. When I went to use the tractor the next day I was out of fuel because that crap ethanol had caused a leak at the fuel bowl where I screws into the fuel tank. i would put 1/3 into brake bppster line, (ive heard some like to put 1/3 in oil ) and 1/3 in gas. I think the baffles inside the tank made it hard for the radiator shop to do a good job. Any reason to use one over the other?. To Magazine Home Page. A couple gallons of old gas mixed with the fresh gas in there won't hurt a thing Sent from my SM-J320V using Tapatalk. Water residue can be a problem for fuel injectors and carburetors.