Recently it came in a discussion on how allegedly lugging is bad for an engine. I haven't heard actual arguments or specifics though, however I started wondering if I the way I drive is detrimental to the engine. Basically, my lower limit for WOTing is 1500rpm - so when not in a hurry, and wanting to enjoy a bit of the rumble, I sometimes shift so that the rpm lands at 1.5k, and WOT at that rpm. No "pinging" or knocking of any sort, but still. Too low? Risky? excessive wear?