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Mar 10, 2023 | 04:13 PM

2010Pony

Thread Starter

Racer

Joined: Apr 2017

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Gear fluids

Getting ready to change oil/filter and have heard different options on changing manual transmission fluid and rear axle fluid 2000 M6 with 342 axle with 83,000 miles. Manual says never needs it and I have no idea if it has been done, when I’m under there checking levels what should it look/ feel like so I know if I should also do this. Also what brand/weight/amount and do you need to add limiter slip fluid. So many different reading not sure what you all are using. Thanks

Mar 10, 2023 | 04:42 PM

Corvette Lovers

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I’d call your dealer. But Dex 6 is the go to. I change my trans and diff fluid every 25k.

Mar 10, 2023 | 07:17 PM

Vader_C5

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From: New Jersey

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St. Jude Donor '25

Just changed mine with Dex6 at the Dealer

Mar 10, 2023 | 07:18 PM

Corvette Lovers

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Quote:

Originally Posted by Vader_C5

Just changed mine with Dex6 at the Dealer

Mar 10, 2023 | 07:36 PM

Corvette Lovers

Intermediate

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Quote:

Originally Posted by Vader_C5

Just changed mine with Dex6 at the Dealer

Tremec will never publicly admit, but they also recommend dex 6.

Mar 10, 2023 | 09:08 PM

vette4fl

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From: Florida

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Rear gears: Any full synthetic 75-90. I prefer RedLine GL-5 75W-90, which already has posi conditioner mixed in; 3 quarts. Have also use Valvoline full syn with no issues.

Trans: RedLine D4 ATF, 1 Gal

Mar 11, 2023 | 07:27 AM

2010Pony

Thread Starter

Racer

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Thank you all for the information! What are the numbers on Dex 6 please. Want to check both brands out before buying. Is the Dex 6 only available at the dealer

Mar 11, 2023 | 07:34 AM

2010Pony

Thread Starter

Racer

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Everything I’m seeing on line the Dex 6 is for automatic transmissions, mine is M6. ??

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Mar 11, 2023 | 07:42 AM

ThomasR

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From: Clark, NJ

The manual trans cars use ATF. Anything Dex III compatable. It's rumored most synthetic fluids ruin the paper blocker rings in 2000 and earlier cars.

Mar 11, 2023 | 07:58 AM

#10

2010Pony

Thread Starter

Racer

Joined: Apr 2017

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Ok thanks, never knew this would be so difficult trying to find proper fluids. And yes this is a 2000 manual.

Mar 11, 2023 | 10:07 AM

#11

Supercharged111

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From: Da U.P.

Quote:

Originally Posted by ThomasR

The manual trans cars use ATF. Anything Dex III compatable. It's rumored most synthetic fluids ruin the paper blocker rings in 2000 and earlier cars.

You're not the first person to say this, and I don't understand why. The Camaros ditched the paper rings back around 95, why oh why would GM/Tremec then go backwards from there?

Mar 11, 2023 | 01:18 PM

#12

johnson-rod

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I use Amsoil Torque Drive for the M6 in my 1998.
I use Amsoil Severe Gear in the rear. No additives needed.
I've been very happy with both.
150K and no problems.