On Apr 23, 8:55*am, Tim wrote:
I know that the ancient engines recommended using a quart of 30 weight
engine oil to gallons of gas, which was primitive, then with 2-cycle
oils the recommended mix ratio went from 24 to 50 to one, Now the
synthetics are going up to 100:1 ratios and for a modern 2 cycle I
think that's OK, but I'm not sure about the designs of the 70's.

My brother is an Amzoil dealer and he things it's the greatest thing
since malted milk, and I like synthetic 2 cycle oil, but I'm wondering
about the recommended mix ratio. personally I think 100:1 is a bit
thin.

Anyone have any thoughts?

It's snake oil! There are thousands of tests out there that will show
that regular 2 stroke oil and Amsoil is the same when it comes to
engine wear and tear. Your engine isn't 100:1 ratio by the way.