- Aug 24, 2011
Truck in sig recommends 4oz of limited slip additive in the rear differential, which from my research, Valvoline Synpower already has mixed in it Total capacity is 2.5 qts Should I go with the valvoline? For a few bucks more, I can get Redline 75w140, does this already have the limited slip additive in it? Any experiences from anyone for either product or another product? Redline: https://www.amazon.com/Red-Line-579...
Valvoline: https://www.amazon.com/Valvoline-75... 560500259&s=gateway&sr=8-2-fkmr1
Also: Any Schaeffers reps on here know if they do or eventually are going to come out with a 75w140?