Here in the states they're starting to use 85% Ethanol.......Hybrids you know. How would the M3 and other 1 to 4 strokes measure up to that?
I have a 4.8ltr 03 chevy silverado 4x4 that does quite well on
87octane.........but if I go to ethanol I'll have to retune.and that's not covered under anything, as far as I know.Thought's?