Rear end fluid change
Thread Starter
Melting Slicks
Joined: Mar 2000
Posts: 2,975
Likes: 1
From: Northwest Iowa
Rear end fluid change
What brand of fluid are you using and how often are you changing your fluid?
I drag race my vette quite often and have changed it twice a season or about every 30 runs. Probably not often enough but would like to hear others recommendations.
I started out with Red Line fluid but last change, went with Royal Purple. Any other recomendation?
I drag race my vette quite often and have changed it twice a season or about every 30 runs. Probably not often enough but would like to hear others recommendations.
I started out with Red Line fluid but last change, went with Royal Purple. Any other recomendation?
Melting Slicks
Joined: Sep 2003
Posts: 2,911
Likes: 1
From: Augusta GA
St. Jude Donor '05-'06
I was using RP for everything and liked it (esp the synco mesh). Could feal no delta with RP in the dif on my 342. The 390 has redline and GM additive. DTE ships with redline so, that is what we used. Good luck!
Dave
Dave
Le Mans Master
Joined: Aug 2003
Posts: 9,298
Likes: 4
From: American Canyon Lethal Injection
RP is what I use in engine, A4 and rear end...all is great...I don't race tho...Rsty
Originally Posted by HawkIVette
What brand of fluid are you using and how often are you changing your fluid?
I drag race my vette quite often and have changed it twice a season or about every 30 runs. Probably not often enough but would like to hear others recommendations.
I started out with Red Line fluid but last change, went with Royal Purple. Any other recomendation?
I drag race my vette quite often and have changed it twice a season or about every 30 runs. Probably not often enough but would like to hear others recommendations.
I started out with Red Line fluid but last change, went with Royal Purple. Any other recomendation?
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
I am running the Amsoil. I don't drag race the car at all, but I do change the tranny/rear fluids about every 10K miles. In my case, that is likely total overkill, but it makes me feel better. 
Racer
Joined: Dec 2005
Posts: 421
Likes: 0
From: NOVA
fluids
Engine: Mobil1 5w40
Tranny: Mobil1 ATF
Rear: 1st fill was AC Delco Synthetic + friction modifier. My *ss hurt so much after paying for those two quarts... next fill
Mobil1 75w90 w/ friction modifyer.
The car gets tracked...
Tranny: Mobil1 ATF
Rear: 1st fill was AC Delco Synthetic + friction modifier. My *ss hurt so much after paying for those two quarts... next fill
Mobil1 75w90 w/ friction modifyer.
The car gets tracked...
Drifting
Joined: Jan 2006
Posts: 1,726
Likes: 97
From: Castro Valley State of Insanity
Here's a good tip for anyone planning on changing lube in engine, trans, or rear diff. in the near future. Magnetic drain plugs are available from a variety of suppliers for the engine oil pan, M6 manual trans, (not sure about the auto) and the rear diff. Nice little extra bit of insurance, and an early warning of imminent problems. A little bit of metal fuzz is nothing to worry about, but larger pieces or chunks is a sure sign of a problem.
Larry
62 Bel-Air 409
260 Eagle XP HP500EFI
2002 Corvette M6 Corvette
Larry
62 Bel-Air 409
260 Eagle XP HP500EFI
2002 Corvette M6 Corvette
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Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
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From: King George VA
AMSOIL Severe Gear Extreme Pressure Synthetic 75w90 in mine.
I change mine about every fourth track weekend, which for me equates to about 500 miles, but my usage is obviously atypical.
Redline uses a ester basestock. RP doesn't say what they use. I would be very surprised to find RP uses an ester, or a PAO basestock (as AMSOIL and Mobil 1 use).
I change mine about every fourth track weekend, which for me equates to about 500 miles, but my usage is obviously atypical.
Originally Posted by FKING1
IMO, Redline & RP are about the same. I use Redline in Diff.
Fred
Fred
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C66 Racing #66 NASA ST2, SCCA T2
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C66 Racing #66 NASA ST2, SCCA T2
AMSOIL Dealer (Forum Vendor)
AMSOIL Preferred Customer Program (Members buy at Wholesale - a savings of about 25%)
Last edited by C66 Racing; Mar 2, 2006 at 05:22 PM.
Thread Starter
Melting Slicks
Joined: Mar 2000
Posts: 2,975
Likes: 1
From: Northwest Iowa
Thanks for the info.
I will probably go back to RedLine on the next change. Did not notice much difference when using the RP, and as stated before, that is what came with the DTE rear end.
Thanks again.
I will probably go back to RedLine on the next change. Did not notice much difference when using the RP, and as stated before, that is what came with the DTE rear end.
Thanks again.
Thread Starter
Melting Slicks
Joined: Mar 2000
Posts: 2,975
Likes: 1
From: Northwest Iowa
Originally Posted by Subdriver
I change mine about every fourth track weekend, which for me equates to about 500 miles, but my usage is obviously atypical.
Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
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From: King George VA
Originally Posted by HawkIVette
I am assuming that you autocross. For me, I only get about 40 miles between changes
Actually, I road race with the SCCA in the T1 class.
Race Director
Joined: Jul 2004
Posts: 16,795
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From: Lake Havasu City, AZ
Mobil 1 75W90 + additive.
I have read over the past two years on this forum of many who used the advertised "additive already in oils" and were subsequently disappointed with noise...
I've never read a post of anyone being disappointed with Mobil 1 + additive....
I have read over the past two years on this forum of many who used the advertised "additive already in oils" and were subsequently disappointed with noise...
I've never read a post of anyone being disappointed with Mobil 1 + additive....
Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
Likes: 38
From: King George VA
Originally Posted by rws.1
Mobil 1 75W90 + additive.
I have read over the past two years on this forum of many who used the advertised "additive already in oils" and were subsequently disappointed with noise...
I've never read a post of anyone being disappointed with Mobil 1 + additive....
I have read over the past two years on this forum of many who used the advertised "additive already in oils" and were subsequently disappointed with noise...
I've never read a post of anyone being disappointed with Mobil 1 + additive....
Originally Posted by Westwopper
How many weekends do you go on:
Engine Oil
Tranny Fluid... and how many quarts do you use?
Engine Oil
Tranny Fluid... and how many quarts do you use?
The amount of fluid I use isn't applicable to most as I have an oil cooler, an accusump, and a tranny cooler.
The stock C5/Z06 takes about 7 quarts for the engine, 3.7 quarts for the tranny (manual) and 1.7 quarts for the diff.
Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
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From: King George VA
Originally Posted by 5.0_CJ
how much friction modifier in the diff?