AMSOIL or RP in diff

[SS from the "Wood"]

Originally Posted by Loading...

Which dealer- Carter? I need some work done too, are they friendly to a modded car?

BTW- your car looks really low, what did you use?

Thanks- sorry I stole the jump the other day, bad habit sometimes.

Hey man what up???? Yeah you go the jump alright... then I felt like a chump trying to catch up...

Yeah, I went to Ron Cartier (that's kart-ee-yay) to have the stuff done... all I can say is that be sure they know ALL of the items you need done ahead of time... oh, and Brian, service writer, said they're backed up like 2 weeks! They may try to tell you that GM won't warranty certain items if that's what you're taking it in for.

BTW - the RP diff fluid has given me a little more confidence in the ass end of my V... no whine whatsoever

[V-Spot]

Hey Guys,

Just picked up a 2004 V and am very happy with it!!! I have been pouring over this forum for the last little bit and tons of great info.

So my question is....I'm getting ready to change out the diff fluid and have read that this stuff is pretty good..
AMSOIL Severe Gear Extreme Pressure Synthetic 75w90.

How many quarts do I require?

Thanks in advance

Jeff

[Civardi]

Pick up 4 quarts. There will be some left over.

[Bueller]

I am in Florida. What Amsoil would I use in the diff and trans? 4 quarts for the diff and how much for the trans?

[ahahnu]

4 quarts? I thought it was 1.5?

Did everyone use ramps or jacks and stands? I was planning on accomplishing this feat tomorrow.

[Civardi]

2 quarts is right. I was thinking of the trans.

[ctsv154]

Transmission (4.0 qt)
Diff (2.0qt) you wont use all of it. Just fill untill it runs out the fill port

[lilred]

It's more like 1.25 quarts. I did mine on ramps and used Amsoil. I would say use anything but change it often. I had some nasty stuff on that plug after only 750 miles on a new rear diff.

[lollygagger8]

Use ramps....easiest way to go. I went GM Fluid in the new diff and it was whining...switched to Redline 75w90 and now it's pretty quiet!! I'm loving that stuff......they make good trans fluid too.

[peter simov]

what amsoil do u use in the trany

[CTSV_Rob]

AMSOil ATF for the trans. There is a gear oil atf mix that is supposed to work best. if your interested, do a search.

I used the Severe Gear in the Diff with the GM friction modifier. She is quiet after 17K so I'm happy.

[trukk]

Originally Posted by trukk

FYI, I would NOT recommend putting in Mobil 1. I added it,m and it has caused my plutch packs to grind on low speed turns. This is with the GM friction modifier added for good measure.

-Chris

FYI,

I switched back to OEM fluid, and no more binding on tight turns. Damned, mobil1.

-Chris

[Rich H]

I replaced the stock OEM fluid with the same and haven't had any problems at all. The only disadvantage in using the stock GM fluid is the price. The advantage is that GM might deny a claim if the replacement fluid in the differential does not have the distinctive "grape" smell when they do their warranty investigation - so why take a chance?

[lollygagger8]

Hahahha that "distinctive" Grape smell doesn't smell like Grapes! You can be dumb like me and take a whiff.....I'm sure the engineers are over that one

[CTSV_Rob]

Originally Posted by Rich H

I replaced the stock OEM fluid with the same and haven't had any problems at all. The only disadvantage in using the stock GM fluid is the price. The advantage is that GM might deny a claim if the replacement fluid in the differential does not have the distinctive "grape" smell when they do their warranty investigation - so why take a chance?

I was a little concerned with the warranty so I taiked with the Service Manager and he told me the AMSOil with the GM friction modifier was a good combination. When I asked him if they would void the warranty with the AMSOil instead of the regular fluid and he told "not at this dealership". He told me that it would be hard to tell the GM stuff from the AMSOil when it's used anyways.

I'm liking this dealership so far.