Best differential oil to use?
Thread Starter
Safety Car
Joined: Oct 2004
Posts: 4,816
Likes: 132
From: Plano TX
Best differential oil to use?
Should I use GM's brand plus an additive or is there a better alternative to use without having to use an additive. I've read that if you use the GM brand you have to use an additive. WTF?.. I have not had any problems with my differential so far. I'm scared it will leak if I start jacking with it. Yeah I know It has to be done though. Has anyone tried a sealer with a diff oil change? Is there such a product?
Just Passin' Thru
Joined: Jul 2005
Posts: 236
Likes: 1
From: Diboll TX
Originally Posted by David426
Should I use GM's brand plus an additive or is there a better alternative to use without having to use an additive. I've read that if you use the GM brand you have to use an additive. WTF?.. I have not had any problems with my differential so far. I'm scared it will leak if I start jacking with it. Yeah I know It has to be done though. Has anyone tried a sealer with a diff oil change? Is there such a product?
Pro
Joined: Oct 2005
Posts: 700
Likes: 75
From: SW Missouri
I just changed the Diff. oil last weekend. I went with Mobil 1 synth. 75w-90 and limited slip add. Going to check the 6 speed tomorrow. After I go out for a Saturday morning tire burn of course. We are all clear here. Zip tied and loving it! 
Instructor
Joined: Oct 2005
Posts: 233
Likes: 0
From: Knoxville TN
As you can see, people are brand specific. We all have what we think works the best and stay loyal to that brand.
You wont go wrong using an oil that needs an additive or one that doesnt. Just make sure you know what "your" choice of oil is going to need.
Good luck
You wont go wrong using an oil that needs an additive or one that doesnt. Just make sure you know what "your" choice of oil is going to need.
Good luck
Race Director
Joined: Jul 2004
Posts: 16,795
Likes: 62
From: Lake Havasu City, AZ
When it comes to oil for my car... I only use Brands that I trust. the bigger the company, the deeper the pockets... the happier I am.
So its Mobil/Exxon (one organization)
or Shell/QuakerState/Pennzoil (one organization)
for me....
So its Mobil/Exxon (one organization)
or Shell/QuakerState/Pennzoil (one organization)
for me....
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Melting Slicks
Joined: Nov 2003
Posts: 2,947
Likes: 2
From: Atlanta GA
I just put in Royal Purple on Thursday night (thanks for the help Chris!!!) and ive had no problems at all. Im happy with it. I had about 61k on the clock before I changed it out. The fluid in there from before (factory) was still doing very good...didnt need to change it afterall..o well, doesnt hurt..
dan
dan
Racer
Joined: Dec 2004
Posts: 405
Likes: 0
From: Virginia Beach Virginia
Originally Posted by Mudlizard
As you can see, people are brand specific. We all have what we think works the best and stay loyal to that brand.
You wont go wrong using an oil that needs an additive or one that doesnt. Just make sure you know what "your" choice of oil is going to need.
Good luck
You wont go wrong using an oil that needs an additive or one that doesnt. Just make sure you know what "your" choice of oil is going to need.
Good luck
Well said for just about any answer posted here to a question that begins, "What is the best....?