correct 6 speed fluid ?
Instructor
Joined: Apr 2002
Posts: 223
Likes: 0
From: Spokane Wa
Re: correct 6 speed fluid ? (Achille)
The correct fluid is 5/30 in either standard or synthetic. The dealer has this as well as a bmw dealer. Or if you can find a castrol dealer that can get the 5/30 castrol. Do not play games with other fluids. The results over the life of your trans will come back to find you. A so called trans expert in seattle changed the fluid in mine to 90/120 valvoline. After the car warmed up the grease would turn to foam. Try to shift that.! It took two changings of the grease to get the system clean. Hope this helps.
Instructor
Joined: Dec 2001
Posts: 164
Likes: 0
From: College Station TX
Re: correct 6 speed fluid ? (fnseeker)
Not just any 5w30, GM has a special GL-3 5w30 for the ZF6. Also, I do believe the BMW M5 tranny fluid is a synthetic Castrol 10w60 (I could be wrong) but either way, when you ask for it be sure to specify that GM part number from above or make sure you are getting the M5 transmission oil. :cheers:
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Drifting
Joined: Aug 2002
Posts: 1,451
Likes: 0
From: Calgary AB
Re: correct 6 speed fluid ? (Rearview)
GM P/N 1052931 or
BMW P/N 07510009420
I believe the BMW oil is the motor oil for M5's, so if you ask for the tranny fluid, you might get the wrong one. In any case, use the part number above
:)
BMW P/N 07510009420
I believe the BMW oil is the motor oil for M5's, so if you ask for the tranny fluid, you might get the wrong one. In any case, use the part number above
:)