E Easley New Member Apr 4, 2005 54 0 0 Mar 16, 2008 #1 Mar 16, 2008 #1 I'm putting 4.10 gears in soon and have three bottles of the purple stuff. Will I need to add posi additive?
I'm putting 4.10 gears in soon and have three bottles of the purple stuff. Will I need to add posi additive?
anthony05gt Active Member Mar 18, 2006 1,262 1 37 Maryland Mar 16, 2008 #2 Mar 16, 2008 #2 The Royal Purple max gear oil has limited slip additive in it.
GOLDENPONY Founding Member Jan 23, 2002 1,503 0 36 LOVELAND, OHIO Mar 18, 2008 #3 Mar 18, 2008 #3 Friction Modifier They all say you don't need it, but you'll do yourself a favor if you get a bottle of the Ford stuff and put it in. I know.
Friction Modifier They all say you don't need it, but you'll do yourself a favor if you get a bottle of the Ford stuff and put it in. I know.