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I can't thing of a benefit. There are no moving parts in the combustion chamber to lubricate. It seems that would just run less efficient, pollute more, foul the plugs and probably build up more carbon on the valves. Additionally, I would think it could gum up the carb quicker. I'm anxious to hear why some may think this is a good idea.
 

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Just to get rid of it, I'll burn a little old mixed 2 Cycle fuel (left over from a chainsaw or a weedwacker) in my car or in my 4 cycle lawnmowers . . . . maybe I've even sent some of it through my snowblower.

But it's not habit forming.
 

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i have been running 2 stroke oil in my 1 vehicle with no issues. if anything i think it has helped it but then again i did put a crappy used fuel pump in it that i know was going bad but the oil seems to have helped a lot. i can kind of understand why some might run it in their lawn mower a well as their 2 stroke equipment just to keep things simple and have 1 less Jerry can in the shed but if you don't have any 2 stroke equipment i wouldn't see any point.
 

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Discussion Starter #6 (Edited)
I guess to eliminate the opportunity of pouring gas with no oil into a 2 stroke would be the best reason. If you own both of course. As in, only have 1 can in the garage.
 

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I don’t do it religiously, just when it’s convenient. Plus, and this is a big one around here, if you keep only one can of gasoline around and it’s pre-mixed, it completely eliminates the chance that wife, neighbors, kids, will pour unmixed gasoline into a two stroke engine.
this is probably the best quote out of that thread that really justifies doing it. if someone is going to dump straight gas in a 2 stroke it is generally someone who is not very familiar with it.
 

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I can't thing of a benefit. There are no moving parts in the combustion chamber to lubricate. It seems that would just run less efficient, pollute more, foul the plugs and probably build up more carbon on the valves. Additionally, I would think it could gum up the carb quicker. I'm anxious to hear why some may think this is a good idea.
i agree. what would be the benefit? these small engine carbs foul up enough with ethanol in the gas. we already add stabilizer and seafoam to combat this if we can't find E free gas.
 

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I can't thing of a benefit. There are no moving parts in the combustion chamber to lubricate. It seems that would just run less efficient, pollute more, foul the plugs and probably build up more carbon on the valves. Additionally, I would think it could gum up the carb quicker. I'm anxious to hear why some may think this is a good idea.
i really don't see how it would gum up the carb or foul up the plug. 2 stroke engines run just fine without the plug fouling. if anything it might help keep the carb clean especially if all you can find is ethanol filled fuel. ethanol tends to cause carbs to corrode and a bit of 2 stroke oil coating the inside of the carb should if anything help prevent that. i have also heard 2 stroke oil can extend the shelf life of fuel with ethanol in it. i really don't see if effecting performance or polluting much if you are runninga 40-1 mix like most 2 strokes require. i would only see issue if you start running mix like 20-1. that stuff even smokes pretty good in a 2 stroke engine
 

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.

Adding oil leans out the fuel mixture which is almost never a good thing,

There is going to be more soot deposited in the exhaust path,

If it had any benefit, the companies that sell the engineered canned fuels would add it and market the crap out if it to make it easier to sell ($6 per quart = $24 per gallon). They might be adding some kind of "friction modifier" (like a lead subsitute) but its not 2 cycle oil.


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