Thread: 2 stroke oil
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Old 05-03-2007, 06:03 AM
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Shorebilly Shorebilly is offline
Marine Engineer (retired)
 
Join Date: Aug 2006
Location: West Virginia
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Arrow I wonder about the gunk it causes.....

Quote:
Originally Posted by ForcedInduction View Post
2-stroke oil lubricates the crankshaft, rod, cylinder walls and piston pin. Since the fuel passes through the crankcase before it goes into the combustion chamber, there is no oil sump like on a 4-stroke engine. Therefore, the engine has to be lubricated by something. Gasoline is an extremely poor lubricant so oil must be mixed into it or the engine would seize. The oil in the gas coats everything as it passes through the crankcase.
Have any of y'all ever cleaned the carbs on an outboard motor that has been put away without draining the carbs or adding a fuel preservative??? That 2 stroke oil leaves quite a residue, just like it's supposed to do....read Forced's description of the 2 stroke lube process.....

If you must use an additive, look into the Power Service line of Diesel Fuel additives.....will be way cheaper and more beneficial to your engine.....

SB
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