C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

M20 Trans. fluid??

Thread Tools
 
Search this Thread
 
Old Dec 8, 2004 | 09:05 PM
  #1  
roger's 2937's Avatar
roger's 2937
Thread Starter
Advanced
 
Joined: Aug 2004
Posts: 83
Likes: 0
Default M20 Trans. fluid??

I just finished inspecting and installing new o-rings and gaskets in my M20 and was wondering what you guys recommend for fluid these days.

Thanks, Roger B.
Reply
Old Dec 8, 2004 | 09:16 PM
  #2  
lostpatrolman's Avatar
lostpatrolman
Melting Slicks
10 Year Member
 
Joined: Feb 2004
Posts: 2,435
Likes: 0
From: largo florida
Default

I put full synthetic in mine. Didnt seem to make any difference. I know alot of the newer trans just use normal atf, not sure if that is ok with an m20 though.
Reply
Old Dec 8, 2004 | 09:21 PM
  #3  
74 vert's Avatar
74 vert
Melting Slicks
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jan 2003
Posts: 2,165
Likes: 8
From: Where are the Smoky Mountain Cruisers? Not Correctly Restored Stingray
Default

Originally Posted by lostpatrolman
I put full synthetic in mine. Didnt seem to make any difference. I know alot of the newer trans just use normal atf, not sure if that is ok with an m20 though.
I put Mobil 1 Synthetic in my M20 two years ago.
Reply
Old Dec 8, 2004 | 09:32 PM
  #4  
LOTAHP's Avatar
LOTAHP
Le Mans Master
 
Joined: Jun 2003
Posts: 5,446
Likes: 2
From: Not Correctly Restored Stingray Fla.
Default

Originally Posted by 74 vert
I put Mobil 1 Synthetic in my M20 two years ago.

What weight !!!??? M-20 should be using at least a 75w oil (gear lube). If synthetic comes in that weight then AOK.

I have always used a premium gear lube 75w and would change at least once a year. LOTA guys forget to change the manual trans. fluid on a regular basis (not every 3,000 miles )
Reply
Old Dec 8, 2004 | 09:35 PM
  #5  
lostpatrolman's Avatar
lostpatrolman
Melting Slicks
10 Year Member
 
Joined: Feb 2004
Posts: 2,435
Likes: 0
From: largo florida
Default

hmm.. I used 75w90 royal purple.
Reply
Old Dec 8, 2004 | 10:18 PM
  #6  
LFZ's Avatar
LFZ
Team Owner
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2003
Posts: 30,183
Likes: 313
From: Lake Norman NC
Default

is it straight 75w? or 75w90? excuse the ignorance, but I wanted to know this also.
Reply
Old Dec 9, 2004 | 07:45 AM
  #7  
pws69's Avatar
pws69
Melting Slicks
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Nov 2001
Posts: 2,668
Likes: 43
From: Eastern US XX
Default

Originally Posted by 74 vert
I put Mobil 1 Synthetic in my M20 two years ago.
Same here. Shifts smoother and is generally MUCH quieter.
Reply
Old Dec 9, 2004 | 08:02 AM
  #8  
bracketshark's Avatar
bracketshark
Burning Brakes
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Oct 2004
Posts: 986
Likes: 23
From: Florence SC
Default

I'm trying to figure out where do O-rings go on a muncie? I haven't been installing any on my rebuilds.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

 Joe Kucinski
story-1

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-2

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-3

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-4

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-5

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-6

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-7

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

 Joe Kucinski
story-8

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-9

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
Old Dec 9, 2004 | 08:37 PM
  #9  
roger's 2937's Avatar
roger's 2937
Thread Starter
Advanced
 
Joined: Aug 2004
Posts: 83
Likes: 0
Default

Thanks for the replies!!

Roger B.
Reply
Old Dec 9, 2004 | 09:05 PM
  #10  
LOTAHP's Avatar
LOTAHP
Le Mans Master
 
Joined: Jun 2003
Posts: 5,446
Likes: 2
From: Not Correctly Restored Stingray Fla.
Default

Originally Posted by 74 vert
I put Mobil 1 Synthetic in my M20 two years ago.

What weight ????
Reply

Get notified of new replies

To M20 Trans. fluid??





All times are GMT -4. The time now is 09:36 AM.

story-0
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-1
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-2
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-3
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-4
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-5
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-6
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-7
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-8
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-9
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