Just wanted to throw in my .02 even though it isn't worth much...I ran rotella in my big rig I owned, my driver changed oil and filters every 10K...we sent out oil samples every 50K...I wouldn't run anything else...my driver purchased the truck 3 yrs ago and it is @ 1 million just having been overhauled, everything looked grt...I haven't given any thought to using it in my crossfire until you guys brought it up