V6 M6 & A6 Differential and Transmission Fluids - Recommendations... V6 ONLY PLEASE! - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

ninety6 · 03-26-2010, 04:03 PM

I've done a lot of searching, and can't come up with anything helpful.

What fluids are you using, or would you recommend for the following:

1. V6 M6 Transmission Fluid (GM says: SAE 75W-90 GL5 Gear Oil)

2. V6 M6 Limited Slip Differential (GM says: Rear Differential Fluid 75W-90 Limited Slip to GM Specification 9986226, which includes friction modifier additive)

3. V6 A6 Transmission Fluid (GM says: DEXRON®-VI )

4. V6 A6 Differential Fluid (GM says: Rear Differential Fluid 75W-90 to GM Specification 9986155 )

Yes, I have read the manual and I understand I need fluids that meet certain specs, but I'm looking for something other than the GM brand of fluids..

It appears to be that Mobile 1 75W-90 LS Gear Oil should work for #1 & #2. Meets GL5 for #1 and has the LS additive for #2 However, I emailed mobile one through the website and got this response: "Mobil does not have suitable products for the transmission or rear end."

*LS = Limited Slip, not the base camaro model

bono83 · 03-26-2010, 06:29 PM

I'm not sure about Mobil 1, but I am sure about Redline because that's what I used for my M6 V6. I used the 75w90NS (Non Slip) in the manual trans and the 75w90 in the rear end. The NS has no friction modifier and should be used in the transmission. The regular 75w90 has friction modifier in it for the limited slip differential. If you use the NS in a limited slip differential rear end, you'll get "chatter" when turning. If you used friction modifier in the manual transmission, it won't shift right because it's too slippery and the syncronizers won't slow don't for proper engagement.

I changed mine at about 6200 miles. I was hoping for better shifting when it was real cold out, but I didn't notice much of a difference. The trans fluid was pretty clean and I don't think it's necessary to change it unless you're really driving your car hard. The rear end fluid and tons of metal shavings in it and I wished I had changed it at about 500 miles. Hope this helps.

devildoc · 04-14-2010, 08:28 AM

Redline seems to make a 75W90 for the automatic trannies.

04-14-2010, 08:28 AM	#3
devildoc Drives: '12 Toyota Tacoma Dbl Join Date: Sep 2009 Location: Beaufort, SC Posts: 1,275 View My Garage	Redline seems to make a 75W90 for the automatic trannies. __________________ MRT V2\|Trifecta Tune\|Airaid\|ARH LTs\|Eibach Sways STANDING 1/4MI: 13.948@99.87 6600RPM HP/TQ Gains - 30.54HP/24.3TQ (NOT PEAK)

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03-26-2010, 04:03 PM	#1
ninety6 2xSOM Drives: 2002 Camaro SS \| 2002 Camaro V6 vrt Join Date: Feb 2010 Location: Mason, OH Posts: 284	V6 M6 & A6 Differential and Transmission Fluids - Recommendations... V6 ONLY PLEASE! I've done a lot of searching, and can't come up with anything helpful. What fluids are you using, or would you recommend for the following: 1. V6 M6 Transmission Fluid (GM says: SAE 75W-90 GL5 Gear Oil) 2. V6 M6 Limited Slip Differential (GM says: Rear Differential Fluid 75W-90 Limited Slip to GM Specification 9986226, which includes friction modifier additive) 3. V6 A6 Transmission Fluid (GM says: DEXRON®-VI ) 4. V6 A6 Differential Fluid (GM says: Rear Differential Fluid 75W-90 to GM Specification 9986155 ) Yes, I have read the manual and I understand I need fluids that meet certain specs, but I'm looking for something other than the GM brand of fluids.. It appears to be that Mobile 1 75W-90 LS Gear Oil should work for #1 & #2. Meets GL5 for #1 and has the LS additive for #2 However, I emailed mobile one through the website and got this response: "Mobil does not have suitable products for the transmission or rear end." *LS = Limited Slip, not the base camaro model

03-26-2010, 06:29 PM	#2
bono83 Drives: 1969 Chevelle, 2010 1LT Join Date: Jun 2009 Location: Chicago suburbs Posts: 378	I'm not sure about Mobil 1, but I am sure about Redline because that's what I used for my M6 V6. I used the 75w90NS (Non Slip) in the manual trans and the 75w90 in the rear end. The NS has no friction modifier and should be used in the transmission. The regular 75w90 has friction modifier in it for the limited slip differential. If you use the NS in a limited slip differential rear end, you'll get "chatter" when turning. If you used friction modifier in the manual transmission, it won't shift right because it's too slippery and the syncronizers won't slow don't for proper engagement. I changed mine at about 6200 miles. I was hoping for better shifting when it was real cold out, but I didn't notice much of a difference. The trans fluid was pretty clean and I don't think it's necessary to change it unless you're really driving your car hard. The rear end fluid and tons of metal shavings in it and I wished I had changed it at about 500 miles. Hope this helps. __________________ Order: 5/23/09 - Deposit given with order at dealer. 1100: 6/26/09 - Order placed by dealer - no allocation 2000: 8/15/09 - Accepted by GM. 2500: 8/18/09 - Preferenced. 3000: 8/18/09 - Accepted by Production Control. 3100: 9/9/09 - Available to Sequence. 3300: 9/9/09 - Scheduled for Production. 3400: 9/19/09 - Broadcast. 3800: 9/29/09 - Produced. 4000: 9/29/09 - Available to Ship. 4150: 9/29/09 - Original Invoice. 4200: 10/6/09 - Shipped. 5000: 10/13/09 - Delivered to Dealer. 6000: 10/13/09 - Delivered to Customer.