My conclusion is the oil does help and hurt at the same time, it probably helps with the start up wear and tear, valve guides, rings etc, and hurts a bit with the higher temps or tendency to ping on hills, so i guess if your not going under heavy loads it's a good thing, as far as FE seemed to help then just stayed the same, not enough testing yet, trucks running great now though, may try super synthetic oil next since i use it in the old outboard exclusively now, . My old street bike a Suzuki 380 two stroke ran a good ten mph more top end and sometimes was so smooth you couldnt feel it run, pretty impressive. In general I think anybody running a carbureted motor should definitely add the tcw 2 or better,
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