Getting closer, ready to add gear oil. I went to Napa today. I see different options. I have a bottle of the AC Delco posi additive. Can I mix different grades types? Thanks
Bobs_Place said
Feb 19, 2022
80W-90 GL5 would work, synthetic or non, look for EP (extreme-pressure) additive and for posi diffs. if you can't find lube for posi diffs you can add the additive that you have if the clutches start to cheater/snap on corners. I wouldn't add the posi additive unless you need to as that stuff really STINKS!!! You can mix but I wouldn't if you can avoid it. I would recommend, with new clutches to change the lube sometime after 2-5000 miles do to the initial clutch ware, so don't spend the big money on synthetic until you change it.
bowtie said
Feb 19, 2022
80W90 is good, GM uses Mobil brand as their manufacturer. Look for LS (limited slip) on the label.
Getting closer, ready to add gear oil. I went to Napa today. I see different options. I have a bottle of the AC Delco posi additive. Can I mix different grades types? Thanks
80W-90 GL5 would work, synthetic or non, look for EP (extreme-pressure) additive and for posi diffs. if you can't find lube for posi diffs you can add the additive that you have if the clutches start to cheater/snap on corners. I wouldn't add the posi additive unless you need to as that stuff really STINKS!!! You can mix but I wouldn't if you can avoid it. I would recommend, with new clutches to change the lube sometime after 2-5000 miles do to the initial clutch ware, so don't spend the big money on synthetic until you change it.