Re: Need to ask
I've heard the same thing, that running hi-test in your outboard yields no performance gain. Maybe something to do with compression ratios. Anyway, I've always run Pennzoil. It's a blend of synthetic and dino-juice, TCW3 of course. It's not the cheapest, but only a few dollars more than the really cheap stuff. It's several dollars less than Yamalube, Quicksilver and the other engine-brand stuff.
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