therock

iTrader: (2)

I have been researching and read Mobil1 is not compliant but it may be for cold temps.

To be safe and sure I'm asking for mid south GA & FL weather would Mobil1 70W-90 be ok in my G80?

I prefer something off the retailer shelf if possible. Thanks

FFDP

iTrader: (2)

Valvoline 75W90 synthetic is all I ever use pretty much.

I don't really care what brand it is, so long as the weight is right. The diff won't know any better and the stuff is like $11-12 a bottle.

bobfig

i have been using that 75w90 mobil 1 oil for almost a year now and haven't had an issue so far. just happy i had a cold at the time of changing so i couldn't smell the stench that stuff puts out.

ezdaar

iTrader: (1)

Lately I have been using liberal tears, so when it starts to whine, i know why.

MikeGyver

iTrader: (5)

How long have you been waiting to use that reply?

Wolftrk99

iTrader: (5)

Any 75w90 synthetic should work, i usually put a bottle of linited slip additive in just for good measure.

07Softail

I'm guessing Chucky Schummer was your inspiration on this! You nailed it though I'll give you that!

RT

therock

iTrader: (2)

Thanks Guys.

ezdaar

iTrader: (1)

Do i win any internets?

someotherguy

Negatory on that...not supposed to use any additive with the truck G80. Eaton Gov-Loc is a locker and does not need limited slip/posi additive and should not have it, this is backed up by a TSB from GM that says it can cause problems. Chatter, improper operation, etc.

I know it gets debated a lot but the TSB says it all. I can dig it up if you like.

Richard