2 stroke outboard gas

Mike: First of all, always use premium gas without ethanol in it. You can buy this at Canadian tire or costco gas bars. When you fill your boat gas tank put the first 3 or 4 litres in your car as the previous person probably filled regular gas and you don't want any of that that is still in the pipes in your gas tank. Then add sea foam to the gas tank as a stabilizer. I always add any left over gas with oil mixed in, to my car gas tank. It will not last the winter. That way it is not ruined. Follow the other members advise for changing lower unit oil. You can store the engine in any garage for the winter.

Canadian tire premium now has ethanol in it. All premium gas will soon.

Here is the article.

https://cherylgallant.com/blog/2021/...ations-coming/

I've always run premium with no ethanol in it. and mixed in sta-bill marine 360. From the advice here I'll probably now toss that gas in my old civic and get new premium for next season.

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Originally Posted by Rick in Muskoka

Mike: First of all, always use premium gas without ethanol in it. You can buy this at Canadian tire or costco gas bars. When you fill your boat gas tank put the first 3 or 4 litres in your car as the previous person probably filled regular gas and you don't want any of that that is still in the pipes in your gas tank. Then add sea foam to the gas tank as a stabilizer. I always add any left over gas with oil mixed in, to my car gas tank. It will not last the winter. That way it is not ruined. Follow the other members advise for changing lower unit oil. You can store the engine in any garage for the winter.

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I've thought about doing this, but feared that the outboard oil would do bad things to my truck engine (eg. clog injectors, etc). What's the mechanic's opinions on doing this? Will 50:1 do any harm to your car/truck engine?

Don't add mixed fuel to a car or truck

Just FYI, I went to shell in Sarnia today, asked about ethanol in premium fuel and she said for now its still ethanol free but they have been told the change is coming, just not sure when. This ticks me off. I always take 5gal of premium ethanol free fuel stabilized to the cottage in the fall, so I have fuel there through the winter when I have to walk into the place. It keeps all winter if not used and is fine come spring for the quad or boat. That won't be the case with fuel containing ethanol.

As for burning mixed gas in a vehicle, I used to do that all the time with older sophisticated engines. For todays engines if I need to I dilute it an awful lot. My F150 holds 135L in the tank. Adding a liter of mixed fuel will be so minimal that I don't worry about it, but it takes a few tanks to use up much. I'd dilute and burn in a lawnmower before a vehicle.

All of the above is good advice ! Is your gas tank metal or plastic ? I've had empty steel tanks develop rust inside them on me due to condensation. Also about your boat ; don't let the boat rest directly on the ground put some wood boards under it (never let steel contact aluminum) and when flipping the boat do so as gently as possible to avoid stress on the rivets.

Like others have said, use only premium ethanol free gas. Always use Sea Foam stabilizer. It is the best product. I put my left over oil and gas mixtures into my car when it is about 3/4 full so the oil is well diluted. You can also use the oil and gas mixture in your chain saw, weed wacker, leaf blower, etc. Don
't save it for several months. Even treated with Sea foam it can deteriorate and hurt your engine next year.

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Originally Posted by greatwhite

Don't add mixed fuel to a car or truck

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I do it all the time, can't tell the difference.. my ATV probably runs more old boat gas then straight fuel.

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