Theory on Why 2T Oil works and Why Additives are Needed!!

[Nmnhnlm]

Ok, after some reading etc, I have come up with a very plausible theory on why 2T oil actually works.

 

As your piston moves on the cylinder walls, the oil scrapper rings removes most of the oil already. This leaves very little oil the walls.

 

As the air/fuel mixture enters the combustion chamber, some of the 2T oil will definitely adhere to the cylinder walls, thus this 2T oil provides lubrication and when the piston moves up to compress the air, there is less friction and hence lesser energy needed and better mileage.

 

Btw, I have also thought about why additional additives are needed for engines, esp. old engines.

 

Think about the instance the fuel ignites and the piston moves down. Whatever oil thats left on the cylinder wall gets burnt as well. This means no oil on the walls. When the piston moves up again, its very likely that the 1st and even 2nd compression ring will make contact with the cylinder walls w/o any oil lubrication. Under such circumstance, only those extreme pressure lubricants like Zinc, Moly etc (whatever thats coated on the walls) will provide the protection necessary.

 

Its impossible for our engine oil to provide 100% protection for the engine (thats why the engine parts does get worn out over time and why there is always metal particles in used oil).

[SimonTan]

Er.... What u describe is exactly what a two stroke enigine needs 2T oil for!