That's right.. I was being conservative with eight gallons. As a matter of fact, with one exception(a Sportwerks 26 that died after 5-6 - had a leaky carb or something I think.. Might even still run fine with a new carb for all I know...), any SH gallon I've retired at eight gallons or so was still going strong.. After eight gallons I generally just want a new engine for the hell of it...