My manual for chinese Jet Silver 80cc says to start with 16:1 and after breakin use 20:1. They are saying to go from more oil to less oil. The forums say to start with 20:1 or so and progress to 40 or 50:1, unless I and misreading something. Can someone verify the proper mixes and explain what they do? Do they very from motor to motor? Does the octane rating in the gas matter or do we just use whats available? And a little extra learning...Why does a car engine have massive amounts of oil being thrown all over everything but a 2 cycle only needs an amount that is virtually undetectable? They still work like **** and build up as much heat as ****.