moparmucelli Well-Known Member Joined Sep 15, 2013 Messages 194 Reaction score 11 Location murrieta ca Jan 26, 2017 #1 hi guys just wondering what's a good differential oil to use in my 8 1/4 rearend 3.21 gear ratio non posi?
hi guys just wondering what's a good differential oil to use in my 8 1/4 rearend 3.21 gear ratio non posi?
73Swinger18 ✱ⓈⓌⒾⓃⒼⒺⓇ Joined Aug 15, 2016 Messages 578 Reaction score 217 Location Camarillo, CA Jan 26, 2017 #2
RustyRatRod I was born on a Monday. Not last Monday. FABO Gold Member Joined Jun 7, 2010 Messages 105,800 Reaction score 104,066 Location Georgia Jan 26, 2017 #3 80w90 is just fine.
moparmucelli Well-Known Member Joined Sep 15, 2013 Messages 194 Reaction score 11 Location murrieta ca Jan 27, 2017 #4 Ok great thanks
Mash340 Well-Known Member Joined May 4, 2013 Messages 65 Reaction score 25 Location mn Feb 5, 2017 #5 80 90 what? Full synthetics semi synthetics straight conventional oil??
71DodgeDemon340 Well-Known Member Joined Apr 2, 2011 Messages 2,697 Reaction score 945 Location Tennessee Feb 7, 2017 #6 75w90 lucas full synthetic.
RustyRatRod I was born on a Monday. Not last Monday. FABO Gold Member Joined Jun 7, 2010 Messages 105,800 Reaction score 104,066 Location Georgia Feb 7, 2017 #7 71DodgeDemon340 said: 75w90 lucas full synthetic. Click to expand... Why? That's not the spec it calls for.
71DodgeDemon340 said: 75w90 lucas full synthetic. Click to expand... Why? That's not the spec it calls for.
71DodgeDemon340 Well-Known Member Joined Apr 2, 2011 Messages 2,697 Reaction score 945 Location Tennessee Feb 8, 2017 #8 Why not? Lucas makes a great product. Sure the 80w-90 will work but 75w-90 seems easier to find and has a better winter rating while having the same benefits of the summer rating. Plus once you put full syn you will never have to change it again Last edited: Feb 8, 2017
Why not? Lucas makes a great product. Sure the 80w-90 will work but 75w-90 seems easier to find and has a better winter rating while having the same benefits of the summer rating. Plus once you put full syn you will never have to change it again