Quote:
Originally posted by shevy not heme
Good one Dyno. We love to ignore that 'theory' stuff about fuel charge DENSITY and volumetric effeciency but you explained it well.
may be you but not me .this was the first thing they hammer in are heads at mercury mercruiser school and that pump gas was not the true octane all the time. they where not going to buy any more engine for boats that hammer them self to death. have done many thing and tried them .on this post i will not give out bad info evey thing i post on i have done it many times .YES he will need to tune it in and if not done rigth it could blow it up i would trust avgas in a12 to1 before pump gas for the rigth octane rating