I've used it in my Wife's 02 Maxima which has some mild detonation in the summer at partial throttle. It has 75K on it and probably needs plugs even though they are supposed to go 100k. I didn't really notice much in eliminating the rattle, but the idle was significantly smoother after I ran about three tanks of gas through it using this product.
I recall it saying on the bottle it increases octane, but can't find any statements to that effect on the Lucas site. I have the quart sized bottle and basically eyeball the amount suggested for the mix.
For the MS3 I was thinking the lubricants would be beneficial to the fuel pump, injectors, and primarily the cylinders as this thing runs 10:1 AFR when you're "in it". Also after hearing all the reports of oil in these cars containing a lot of fuel at the end of oil changes, I suspect it might help reduce cylinder wear. They could be getting washed down.
It actually seems like an ideal product for this car, but I wondered what other, more technically savvy or experienced people than myself had to say.
Thanks for the feedback guys.
