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Best Dextron Vl brand for overheating conditions #4583910
11/24/17 06:33 PM
11/24/17 06:33 PM
Joined: Nov 2017
Posts: 3
RGV Texas
911Hunter Offline OP
911Hunter  Offline OP
Joined: Nov 2017
Posts: 3
RGV Texas
Hi Guys,
Recently I went to a HPDE event on my '14 Corvette Stingray Z51, which has an automatic transmission. Each time that I went to the track after lapping hard my Corvette it overheated its transmission and I had to abandon the circuit for my vehicle to cool down. But on the street or road my car has never overheated. I was wondering if there is a better brand of Dextron Vl fluid that could help me out while taking my car to the circuit, I don't want to lose my powertrain's warranty by going the aftermarket way. Please advise.

Last edited by 911Hunter; 11/24/17 06:36 PM.
Re: Best Dextron Vl brand for overheating conditions [Re: 911Hunter] #4583916
11/24/17 06:41 PM
11/24/17 06:41 PM
Joined: Jun 2003
Posts: 17,818
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline
Joined: Jun 2003
Posts: 17,818
Deplorable in apple valley, ca
Put a cooler on it.


02 Wrangler carlube 5w30
87 F250 traveler 15w40
07 fjcruiser Chevron 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: Best Dextron Vl brand for overheating conditions [Re: 911Hunter] #4583919
11/24/17 06:43 PM
11/24/17 06:43 PM
Joined: Jun 2008
Posts: 5,420
In the Garage...
ls1mike Offline
ls1mike  Offline
Joined: Jun 2008
Posts: 5,420
In the Garage...
Cooler and done, cooler should not void it.


Mike
00 Trans Am WS6 5.7 LS1
02 Silverado 2500HD 6.0
14 Caprice PPV 6.0
15 Malibu LTZ Turbo
12 Passport TT
Re: Best Dextron Vl brand for overheating conditions [Re: 911Hunter] #4583920
11/24/17 06:44 PM
11/24/17 06:44 PM
Joined: Aug 2004
Posts: 2,016
5600 feet elevation, Arizona
double vanos Offline
double vanos  Offline
Joined: Aug 2004
Posts: 2,016
5600 feet elevation, Arizona
This ^^^^^^ Ill bet Chevy even makes one for your car.

Last edited by double vanos; 11/24/17 06:44 PM.

Sabine Schmitz is the Queen of the 'Ring; Svetlana Kapanina is the Queen of the SKIES...
Re: Best Dextron Vl brand for overheating conditions [Re: 911Hunter] #4583922
11/24/17 06:45 PM
11/24/17 06:45 PM
Joined: Jun 2005
Posts: 11,619
Santa Barbara, CA
bdcardinal Offline
bdcardinal  Offline
Joined: Jun 2005
Posts: 11,619
Santa Barbara, CA


2014 Ford Mustang GT Track Pack
1995 Ford Mustang GT

Ford/Mazda Parts Counter
NRA Benefactor Member
Opinions expressed are my own.
Re: Best Dextron Vl brand for overheating conditions [Re: 911Hunter] #4583980
11/24/17 07:52 PM
11/24/17 07:52 PM
Joined: Mar 2008
Posts: 7,335
USA
slacktide_bitog Offline
slacktide_bitog  Offline
Joined: Mar 2008
Posts: 7,335
USA
Redline D6 might work for you smile

Re: Best Dextron Vl brand for overheating conditions [Re: 911Hunter] #4583984
11/24/17 07:55 PM
11/24/17 07:55 PM
Joined: Dec 2013
Posts: 2,450
Fort Worth, Texas
clinebarger Online content
clinebarger  Online Content
Joined: Dec 2013
Posts: 2,450
Fort Worth, Texas
Auxiliary trans cooler like others have stated.

Deeper/High Capacity transmission pans can CAUSE issues with the fluid climbing the rear of the pan during hard acceleration...Therefore uncovering the pick-up/filter leading to burnt frictions &/or "Limp-Mode". At least make sure it has baffling in the pan & hope it was tested thoroughly if you decide to go with a higher capacity pan


2001 Chevy Camaro L92/4L80E
2006 Chevy 2500HD LBZ/Allison 1000
2010 Toyota Corolla 2ZR-FE/U341E
2000 Toyota Avalon 1MZ-FE/A541E
Re: Best Dextron Vl brand for overheating conditions [Re: 911Hunter] #4584114
11/24/17 11:25 PM
11/24/17 11:25 PM
Joined: Nov 2017
Posts: 3
RGV Texas
911Hunter Offline OP
911Hunter  Offline OP
Joined: Nov 2017
Posts: 3
RGV Texas
I agree with you all, about that an improvement on the transmission cooler would be the best option. The track packaged Z51 already comes with a differential & transmission coolers with an integrated fan on the rear left side with additional rear side vents for cooling purpose, but apparently it was not enough since the '16 model was upgraded with an additional front cooler similar to its big brother Z06. But this upgrades aren't authorized by GM to prior years with risk of losing your powertrain warranty. Also LG's coolers look like a great option, but same thing related to GM's warranty. Then probably red line synthetic transmission fluid could be an option while I wait for the GM warranty to expire for me to install either cooler: GM's or LG's.

Last edited by 911Hunter; 11/24/17 11:37 PM.
Re: Best Dextron Vl brand for overheating conditions [Re: Chris142] #4584158
11/25/17 03:51 AM
11/25/17 03:51 AM
Joined: Jan 2011
Posts: 2,833
N.Ohio
Lubener Offline
Lubener  Offline
Joined: Jan 2011
Posts: 2,833
N.Ohio
Originally Posted By: Chris142
Put a cooler on it.

Agree. No specific fluid is going to prevent overheating.


The "thinking" man's friend.
Re: Best Dextron Vl brand for overheating conditions [Re: 911Hunter] #4584258
11/25/17 07:42 AM
11/25/17 07:42 AM
Joined: Nov 2011
Posts: 1,242
Lyndhurst NJ
Audios Offline
Audios  Offline
Joined: Nov 2011
Posts: 1,242
Lyndhurst NJ
Cooler with a thermostat if possible, so the fluid doesnt run cooler than it should when not tracking.


2002 VW Golf TDI-Mobil 1 5/40 TDT
2007 Mercedes GL320 CDI Fuchs 5/40 GT Pro XTL
2005 BMW M3 BMW Twin Power 10/60
2003 BMW M5-Fuchs 5/40
1998 BMW M3/4/5 Fuchs 5/40
Re: Best Dextron Vl brand for overheating conditions [Re: 911Hunter] #4584337
11/25/17 09:34 AM
11/25/17 09:34 AM
Joined: May 2012
Posts: 5,671
Fort Lauderdale, FL
DoubleWasp Offline
DoubleWasp  Offline
Joined: May 2012
Posts: 5,671
Fort Lauderdale, FL
Change fluid all you want. Won't make a difference at all.

Talk to your dealer and GM. Pick away at both until they develop a solution.


07 Lincoln Navigator M1 0w-40/FU
68 Charger R/T / Supercharged 440 VR1/DBL7349
07 Ram 3500 4x4 / Cummins 6.7 /DBL7349
17 Maserati GranTurismo Cabrio
Re: Best Dextron Vl brand for overheating conditions [Re: 911Hunter] #4584633
11/25/17 03:34 PM
11/25/17 03:34 PM
Joined: Jun 2005
Posts: 11,619
Santa Barbara, CA
bdcardinal Offline
bdcardinal  Offline
Joined: Jun 2005
Posts: 11,619
Santa Barbara, CA
Or wait until the warranty runs up and have at it.


2014 Ford Mustang GT Track Pack
1995 Ford Mustang GT

Ford/Mazda Parts Counter
NRA Benefactor Member
Opinions expressed are my own.
Re: Best Dextron Vl brand for overheating conditions [Re: 911Hunter] #4584817
11/25/17 07:10 PM
11/25/17 07:10 PM
Joined: Dec 2006
Posts: 551
ohio
xtell Offline
xtell  Offline
Joined: Dec 2006
Posts: 551
ohio
Mount the biggest oil cooler you can fit in and do a fluid change with Valvoline Dexron VI fluid. It is a synthetic fluid.

Re: Best Dextron Vl brand for overheating conditions [Re: 911Hunter] #4586013
11/26/17 07:11 PM
11/26/17 07:11 PM
Joined: Oct 2006
Posts: 2,912
MI, USA
Whitewolf Offline
Whitewolf  Offline
Joined: Oct 2006
Posts: 2,912
MI, USA
Try DEXRON HP it's still a DEXRON-VI but full PAO/Ester.


My definition of an expert in any field is a person who knows enough about what's really going on to be scared.
~ PJ Plauger
Re: Best Dextron Vl brand for overheating conditions [Re: 911Hunter] #4586138
11/26/17 09:12 PM
11/26/17 09:12 PM
Joined: Jun 2009
Posts: 107
Michigan
Oil_Flunky Offline
Oil_Flunky  Offline
Joined: Jun 2009
Posts: 107
Michigan
Lubegard Red at 1.5 ounces per quart should bring temps down significantly.


Oil, you need it. Oil snobbery, you don't need it.
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