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Straight gas in a can that was used to hold pre-mix?

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This might be a stupid question, but I had no luck searching the web. If making the switch from a smoker to a thumper, am I risking any problems by putting straight gas in the can that I used to use for pre-mixed fuel?

My gut tells me there won't be enough oil residue left in there to be a problem but would rather be safe than sorry.

Maybe I should slosh a gallon of gas around in there and dump it in the truck first?

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yeah i dont think it will hurt any thing. if you are too concerned you can rinse it out like you said. but i wouldnt bother

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NNNOOOO!!!! Don't do it!!! The can is fine, but don't swap to a four stroke!lol j/k man

No worries I have both, use the same can all the time, even poured mixed gas in my 450f just don't go the other way and pour straight in you 2 stroke.

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This might be a stupid question, but I had no luck searching the web. If making the switch from a smoker to a thumper, am I risking any problems by putting straight gas in the can that I used to use for pre-mixed fuel?

My gut tells me there won't be enough oil residue left in there to be a problem but would rather be safe than sorry.

Maybe I should slosh a gallon of gas around in there and dump it in the truck first?

don't bother, it will be fine. we switch between 2 smoke and 4 smoke all the time. I even take my leftover 2 stroke stuff and dump it into my truck for the ride home, no issues!

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I would not recomend using 2 st gas in anything that has catylytic convertors, The oil in the mix will eventually damage the catalyst.

On a 4st dirt bike there are no CC's so there will be no harm.

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I would not recomend using 2 st gas in anything that has catylytic convertors, The oil in the mix will eventually damage the catalyst.

On a 4st dirt bike there are no CC's so there will be no harm.

Jake,

this happens maybe once a month, I've been doing this for 20 years now - never had a cat converter fail - so i guess i need to amp up the oil!

do the math, so 2 gallons of 50 to 1 mix, thats uh - 32 x 4 = 128 oz / gal. so 128/50 = about 2.5 oz per gallon. so you end up putting 5 oz of 2 stroke oil into say 10 gallons of fuel. So 128 X 10 - 1280 oz, correct so 5 oz /1280 = , just about 250 : 1 on the mix ratio. once a month or so, coupled with the fact that I drive about 2K miles a month, Not gunna hurt anything!

Edited by carl johansson

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You can always just strike a match in the empty can and let all of the premix burn itself out. :bonk::smirk:

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This might be a stupid question, but I had no luck searching the web. If making the switch from a smoker to a thumper, am I risking any problems by putting straight gas in the can that I used to use for pre-mixed fuel?

My gut tells me there won't be enough oil residue left in there to be a problem but would rather be safe than sorry.

Maybe I should slosh a gallon of gas around in there and dump it in the truck first?

no problems with doing that, you can run mixed gas in your thumper if you really wanted too, you would just foul plugs, but a little residual oil isnt going to hurt anything

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This might be a stupid question, but I had no luck searching the web. If making the switch from a smoker to a thumper, am I risking any problems by putting straight gas in the can that I used to use for pre-mixed fuel?

My gut tells me there won't be enough oil residue left in there to be a problem but would rather be safe than sorry.

Maybe I should slosh a gallon of gas around in there and dump it in the truck first?

Don't worry about it. The amount of oil is insignificant. Even if it wasn't, your 4-s wouldn't care about the oil. I dump mix into my 4-s engines all the time. AAMOF, right now my Honda 450 Foreman and my Snapper LT16 lawn tractor (in different locations) are both running on 100% 25:1 premix. For the ATV, it was out of gas, mix was all I had in the garage and I had to plow, so in the tank it went. My tractor was full of gas, I needed some chainsaw mix, and I didn't have a container to mix it in - so, dumped the 2-s oil right in the tank then drained it into the saw. Interestingly, even with 25:1 mix, neither of them smoke while running.

JayC

Edited by jayc250x

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