C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

A4 tranny and diff. fluid life.

Thread Tools
 
Search this Thread
 
Old Aug 30, 2001 | 12:41 AM
  #1  
Cosmo Kramer's Avatar
Cosmo Kramer
Thread Starter
Drifting
15 Year Member
 
Joined: Feb 2000
Posts: 1,591
Likes: 53
From: Central MN
Default A4 tranny and diff. fluid life.

Forget what the owners' manual says. What's you opnion on the A4 tranny fluid and differiential (sp?) fluid life. My C5 has 25K on it and the dealer says it's time to change the fluid (never been done before.) Thanks.
Reply
Old Aug 30, 2001 | 12:53 AM
  #2  
Duck916's Avatar
Duck916
Team Owner
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2001
Posts: 21,375
Likes: 1,004
From: Various places in Southern California.
Default Re: A4 tranny and diff. fluid life. (98-C5)

Unless you've been racing the car, I'd follow the schedule in the manual. Remember that most dealers want to get a few easy bucks by providing unnecessary maintenance work. The dealer I bought my car from gave me a brochure listing all sorts of unscheduled maintenance to bring the car in for, including tire rotation! (To be fair, it wasn't a Corvette-specific brochure.)

Reply
Old Aug 30, 2001 | 12:59 AM
  #3  
Cosmo Kramer's Avatar
Cosmo Kramer
Thread Starter
Drifting
15 Year Member
 
Joined: Feb 2000
Posts: 1,591
Likes: 53
From: Central MN
Default Re: A4 tranny and diff. fluid life. (Duck916)

Duck916...........Good point. However, dosen't the owners' manual say that you can go something like 15K miles between oil changes? NOT!!!!
Reply
Old Aug 30, 2001 | 02:18 AM
  #4  
Duck916's Avatar
Duck916
Team Owner
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2001
Posts: 21,375
Likes: 1,004
From: Various places in Southern California.
Default Re: A4 tranny and diff. fluid life. (98-C5)

Ya got me there, 98-C5. Though there have been a few debates about oil life here, I can't bring myself to go past 5000 miles. Nope, can't do it!
Reply
Old Aug 30, 2001 | 10:15 AM
  #5  
Chopper Larry's Avatar
Chopper Larry
Le Mans Master
 
Joined: Apr 2000
Posts: 5,981
Likes: 0
From: Houston,Tx. USA
Default Re: A4 tranny and diff. fluid life. (98-C5)

The GM stated service interval in the manual is 100,000; If I were using it harder I'd do it every 15,000. I'm gonna do mine at 50K, which within the next month or so for me; I'll post the condition of the old fluid.
Reply
Old Aug 30, 2001 | 12:51 PM
  #6  
Kenny94945's Avatar
Kenny94945
Le Mans Master
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2000
Posts: 6,490
Likes: 716
From: Sausalito CA
Default Re: A4 tranny and diff. fluid life. (98-C5)

Hi,
The C4 had a 15K trans fluid change as a recomendation.
On my C5, I speeded this schedule up, but my .02 is change every 15K as a fellow co-member above also wrote.

Here is some other data:
1 - there are two types of transmission filter...deep pan and short pan. Be aware.
2 - There is a replacement O-ring in the filter kit. A proper tool for the removal of the old one makes life easy. See the service manual.

Also, I first changed my filter and oil at 9K and the oil was brown. Tooks 5 quarts.
Next change, was at 20K and I had wrong filter. Pan gasket was reused. Some metal shavings and brown oil noted.
Last change was at 22K (had correct filter), and oil looked red and good. However, I noted brown/ black clutch disk residue after this short time.

Always shifts/feels better after an oil change by the way.
Around my area the dealer charges around $100. to do a trans oil flush. You should go for it and then go onto a 15K schedule. Again my 02.

Thanks given to all on this forum.

Kenny
Reply

Get notified of new replies

To A4 tranny and diff. fluid life.





All times are GMT -4. The time now is 11:53 AM.

story-0
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-1
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-2
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-3
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-4
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-5
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-6
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-7
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-8
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-9
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE