The big debate on not using a GL-5 when calling for a GL-4 80w90 gear oil peaked my interest up to see what difference would a person see between the two given oils so here is two gear oils, both from STA LUBE, one GL-4 85w90 the other GL-5 80w90 straight from the bottle.
edited sulfur
[ December 05, 2002, 12:15 PM: Message edited by: BOBISTHEOILGUY ]
Notice that the real difference between the two is the PH. Just what you'd expect to see.code:
ADDITIVES GL-4 GL-5
MO 1 0
PH 440 1103
ZINC 9 12
MAG 0 0
CAL 23 13
SUL 0 5
edited sulfur
[ December 05, 2002, 12:15 PM: Message edited by: BOBISTHEOILGUY ]