this is has been talked about several times and I just spent about 2 hours looking at the forums and M1 vs RP product guides and still not sure which to use. ive been alternating 20w-50 RP and 15w-50 M1 for the past year, when i first got my TT i was putting 10w-30 M1 until greg@SZ recommended 20w-50 RP. i understand the GTR is being factory filled with 0w-40 M1 but does that really mean anything for the VG? i have a little bit of oil burnoff and want to preserve the cats as much as possible, at least for emissions.... - have been using 1qt lucas oil stop leak with every oil change has anyone had more testing of the different oils lately?
================================= 1991 NA 2+2 - Pearl White - Auto (RIP) 1996 NA - Arctic White - 5Speed (SOLD) 1990 TT - Aztec Red - 5Speed (DD) |