Yeah, 'er 'uh, ufo,
The white residue as opposed to the black, idicates the engine is burning CLEANER fuel. The higher the octane, the hotter it will burn, thus producing a slight Horsepower gain, and a reduction in carbon. It will not damage your Motor in any way. If anything, it helps it! The only thing it damages is your funds! I use Blue Fuel when I can find it, which is 112-114 Octane. It cost $5.25 per gal. in Beckley, WV, today. It will be all used up by the time I get to "Maggie Holler", so hd2003 won't get to smell my fumes! [smiley=huepfenlol2.gif] Later--HUBBARD