I've been hanging around here too much lately and wouldn't you know it; I know have 6 quarts of GC M04 batch sitting in the garage. I went up to autozone with an advanced auto parts ad with Castrol Syntec advertised at $3.97 just so I could get some Syntec 5w-40 for my new VW GLI and before I knew it I was digging through the GC searching for the green stuff. Next thing I knew I was at home with the five quarts of the 5w-40 that I went up there for plus six quarts of the magical green GC. I have no idea what i'm going to use it in. I might use it in the GLI, but kinda worry about warranty issues even though it's VW502 approved. VW seems to like you to use 5w-40 or 5w-30 in some cases. On the other hand I don't really feel that the elves would get to work all their magic in the wifes 03 Neon. Help! Is there any known treatment or cure for this sickness?