Can I mix synthetic oil with mineral oil in my oil injected snowmobile?

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Nate

Member
I would agree... somewhat, I know that synthetic blends are all over the market for cars, but cars do not use oil in their fuel. The other guy makes a good point about the residue left behind by the synthetic oil, I'm not sure if thats accurate or not.

I'm sure it doesn't need to be brand oil either, any two stroke oil will work, many people told me to stay away from synthetic in my bike because it's "too slippery for the clutch". I've never had a problem with it.

bottom line if it's all two stroke oil I'd just throw some good ol' fashioned earth oil in there and call it good.
 
P

Price

New member
They'll say anything to het you to buy their stuff. The truth is, I'm not sure, but I have knowlege that is related and may apply.

--For a rotory engine (Mazda rx7 or rx8) there are oil injectors that directly feed oil into the rotor housing to lubricate the seals between the rotor and the housing. It is a very bad thing to use synthetic oil in a rotory engine because it will not be consumed completely during the combustion process, leaving behind harmful depsoits that will accelerate the deterioration of the few moving parts in the engine. The same (I would assume) would apply to two stroke engines as well.

Then again, I could be wrong.
 
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guardrailjim

Member
It's not recommended to mix the 2 types in the crankcase, as they don't mix well.
I don't see a problem mixing them in the injector tank.
It's all going to be burned - whether they mix or not, is not a factor.
You do not have to use Ski-Doo brand oil.
Use any quality, brand name, 2 cycle oil specifically for injector type engines.
Some brands can be used as injector or gas/oil pre-mix - read the label.
 
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IrvS

Member
Why? Synthetic is supposed to have the virtue of lasting longer
in long hard service which justifies its extra cost.
You are going to use it once and burn it.
 
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