I got a 98 6sp BPU++. When I am WOT and then shift I see a puff of smoke ONLY AFTER I STEP ON THE GAS AGAIN! The smoke will not come out if I just let off the gas or if I shift and do not hit the gas! It only comes out when I am at WOT and shift and then the second I touch the gas again I see the puff! What gives? My car smokes at startup but goes away when I drive away but I also thought that Mobile 1 synthetic smoked a little at startup as well?