10-15-2019, 09:03 AM | #1 |
TEXIT
Drives: 2019 ZL1 M6 Join Date: Aug 2018
Location: Republic of Texas
Posts: 160
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Royal purple fluids and the ZL1
I am about to change the oil for the 1st time I believe (32% on the oil life monitor) on my 2019 M6 ZL1 with 4k miles. Car was bought used. I will be using the factory fill 0w-40 Mobile 1 ESP with the PF-64 filter.
My question is about the gear oil and tranny fluid. Anyone using RP for diff and tranny fluid? Does this induce the gear groan I have read about or is it hit or miss? I prefer RP fluids over any others from my personal experience and the RP company is a stones throw from my house and I like to support the local economy when I can. Comments? |
10-15-2019, 09:16 AM | #2 |
Drives: Chevy Camaro Join Date: Jul 2019
Location: Dallas
Posts: 420
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I just changed my diff fluid at 1500 miles, I used the GM factory fluid, not a fan of RP no real proven data saying its better than the factory stuff. but if you sleep better using it, tear yer ass.
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10-15-2019, 11:31 AM | #3 |
Oh Oh it's Friday Night!
Drives: 2018 ZL1 1LE Nightfall Gray Join Date: Jan 2018
Location: Walton Woods
Posts: 1,061
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Do not try to out think the engineers at GM. Use the factory gear oil. You will gain nothing whatsoever with RP.
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10-15-2019, 12:08 PM | #4 |
Drives: 2018 ZL1 1LE Join Date: May 2019
Location: South Florida
Posts: 438
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Factory fill here as well. My car sees very hard track usage.
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10-15-2019, 12:12 PM | #5 |
ITCRNRS
Drives: 2018 ZL1 1LE Join Date: Jun 2012
Location: Wichita KS
Posts: 1,575
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I've only used factory GM fluid for my rear axle and trans.
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10-15-2019, 12:52 PM | #6 |
Drives: 2018 ZL-1 Join Date: Jan 2018
Location: Albuquerque
Posts: 948
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Ditto on factory fluids.
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10-15-2019, 07:15 PM | #7 |
Drives: 18 ZL1 1LE HBM 14 SALEEN 620[S] Join Date: Sep 2019
Location: TN
Posts: 51
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ditto. Just changed rear diff factory fluids
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10-15-2019, 07:43 PM | #8 |
TEXIT
Drives: 2019 ZL1 M6 Join Date: Aug 2018
Location: Republic of Texas
Posts: 160
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Alrighty then... I see the consensus is OEM fluids.
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10-15-2019, 08:12 PM | #9 |
Drives: 17 Camaro SS 1LE & 16 Sierra AT CC Join Date: Nov 2016
Location: Norman, OK
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The transmission is the one area the other fluid companies excel. RP Syncromesh is a way better fluid for the M6 transmission. I had all sorts of issues with the OEM fluid, especially when cold. RP eliminated all of those issues.
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10-16-2019, 09:32 AM | #10 |
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Drives: 2019 ZL1 M6 Join Date: Aug 2018
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10-25-2019, 11:52 PM | #11 |
Drives: 2019 ZL1 Join Date: Nov 2009
Location: Lake in the Hills, IL
Posts: 257
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+1 for the RP Syncromesh
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10-27-2019, 01:17 PM | #12 |
Drives: 2018 2SS 1LE Black Join Date: Aug 2018
Location: Cape Cod
Posts: 638
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It's actually Syncromax, +2 for the RP Syncromax for the M6 and this for the rear end, you'll need 2 -> https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
Syncromax, get the case it's cheaper than buying singles. -> https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 A pump to get it in there. ->https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 |
10-28-2019, 07:10 AM | #13 |
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Drives: 2019 ZL1 M6 Join Date: Aug 2018
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PSA:
So I emailed TREMEC and asked them the proper fill instructions on the TR 6060 tranny and here is the response: "Hello and thank you for contacting Tremec. Your trans will take approx 3.84 liters you’ll need to buy 4qts you will use just under 4. Add fluid until it comes out of the side plug and then cap it." So looks like the GM instructions for refilling to 1/8th inch below the plug is garbage. |
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