R-Y,
Yeah 85:1 used to be the recommended ratio for MC1 on the bottle. There is another thread in here with a similar topic where I this explained further. I quit using the 32:1 type rich ratios when synthetic oil came out. No oil failures since! Hey, my yamaha outboard uses 100:1. Remember that leaner ratios (as long as there is enough oil to lubricate properly) makes your bike run cooler since oil burns hotter than gas. MC1 is the white bottle with blue writting, good stuff. My '92 still has the original top end and I am just now noticing a minor decrease in compression (winter rebuild time). I think most of the newer synthetic oils nowdays are pretty good. Just have to pick a good one and stick with it. MC1 is my choice. Cam.