Take a look at this thread. I can smell burning oil on high rpm decel. When autocrossing, no smoke on accel, but lazy blue smoke from tailpipe on decel through a sweeper. http://www.svtperformance.com/forums/showthread.php?1089760-Oil-smell-high-RPM-decel it got me researching that perhaps the use of Mobil 1 is to blame? Some say certain vehicles use oil when they switch to M1 and stop when they switch to something else. thoughts?