How often to change Auto tranny fluid?

Eleanor · 06-07-2009, 09:32 AM

Curious how often you all change your auto tranny fluid? Am I ok with once a year? I put maybe 8,000 miles on the Vette each year, I wouldn't say I horse the car much. I change my engine oil every 3,000 miles, even though I know the oil can last much longer. I guess it just gives me something to do on the car on a more regular intervals!

talon90 · 06-07-2009, 10:19 AM

The recommended automatic transmission fluid change interval is 50,000 miles.

Eleanor · 06-07-2009, 10:35 AM

Quote:

Originally Posted by talon90

The recommended automatic transmission fluid change interval is 50,000 miles.

Is it really that high? I'm actually very surpised. There of course is no harm in doing closer intervals correct?

toobroketoretire · 06-07-2009, 02:32 PM

Quote:

Originally Posted by Eleanor

Is it really that high? I'm actually very surpised. There of course is no harm in doing closer intervals correct?

Unless the car is driven under severe duty conditions, there's just no point in it.

talon90 · 06-07-2009, 04:07 PM

Quote:

Originally Posted by Eleanor

Is it really that high? I'm actually very surpised. There of course is no harm in doing closer intervals correct?

Harm, no. The difficulty of the procedure renders it a challange for all but the most hardcore DIY'ers. The transmission cooler means that you need to have the engine running to drain the fluid and to completely change it you should use a power flush. In order to change the filter you need to drop the pan.

BUBBA · 06-08-2009, 05:01 AM

Changing the fluid is such a PITA, why even bother with it on such a regular basis if you don't need to?

marine57_4 · 11-14-2012, 09:28 PM

Quote:

Originally Posted by talon90

Harm, no. The difficulty of the procedure renders it a challange for all but the most hardcore DIY'ers. The transmission cooler means that you need to have the engine running to drain the fluid and to completely change it you should use a power flush. In order to change the filter you need to drop the pan.

do you have pictures of where to drain and fill the auto tranny? thanks, frank

thecorvettemechanic · 12-06-2012, 05:11 AM

HI there,

The key is driving. If you reference your owners manual on the 2006, they actually say that you shouldnt have to. This is because Dexron 6 is a semisynthetic fluid and doesnt oxidize like the older stuff does.

This being said, I recommend to have the fluid COLOR AND CONTAMINATION checked.

This means, removing the drain plug, dripping a few drops onto a white piece of paper and looking at it. All Dexron fluids will turn brown over time as the fluid ages because the dye wears out. That does NOT mean it needs changing. If I see any heavy particles in the fluid, is when I recommend changing it. Thats because the fluid suspends contaminants and these need to be removed.

To Drain and fill the 6L80 in your car, its not easy. The fill plug is in the top of the case and the actual level plug looks like the drain plug on the transmission pan.

I would suggest, if its not driven agressively, not to worry about it. If you have gone 5 years without a change, it certainly would not hurt it, but its not necessary.

Allthebest, TCM

fishslayer143@yahoo.com · 12-06-2012, 01:52 PM

I see you just joined, TCM.. welcome to Smokin Vette

c6vette · 12-06-2012, 06:58 PM

Good info!

06-07-2009, 09:32 AM	#1
Eleanor Smokin 50HP Club Join Date: Dec 2008 Location: New Jersey Posts: 76 My Gallery	How often to change Auto tranny fluid? Curious how often you all change your auto tranny fluid? Am I ok with once a year? I put maybe 8,000 miles on the Vette each year, I wouldn't say I horse the car much. I change my engine oil every 3,000 miles, even though I know the oil can last much longer. I guess it just gives me something to do on the car on a more regular intervals! __________________ My Eleanor: 2006 C6 6 Speed Automatic

06-07-2009, 10:19 AM	#2
talon90 Agent Join Date: Oct 2008 Location: Alvaton, Ky Posts: 2,243 My Gallery	The recommended automatic transmission fluid change interval is 50,000 miles. __________________ NCM Lifetime Member NCM Master Ambassador 2005 Precision Red Coupe - Born on 10/04/2004 Adopted 05/26/06 Past Corvettes 1997 TR Coupe. MN6 19I. Born on 04/15/1997 1984 Coupe And yeah, we wave. More photos on my site. www.theredlion.us/Redlion2.htm http://smg.photobucket.com/albums/v610/talon_90th/C6/ and here: http://photobucket.com/albums/v610/talon_90th/Corvette/

06-08-2009, 05:01 AM	#6
BUBBA Smokin 1000HP Twin Turbo Club Join Date: Feb 2008 Location: Key West Posts: 1,927 My Gallery	Changing the fluid is such a PITA, why even bother with it on such a regular basis if you don't need to? __________________ Whats Hiding in Bubba's garage? 2007 Indy 500 Pace Car - 2240 miles 2001 C5 6 Speed Corvette - 96,000 miles 2003 Dodge Ram Pickup - 54,000 miles 1984 C4 Corvette - 68,000 miles - SOLD and Missed

12-06-2012, 06:58 PM	#10
c6vette Smokin 1000HP Twin Turbo Club Join Date: Sep 2008 Posts: 1,088 My Gallery	Good info! __________________ 2006 Blk C6 vert w/A&A Supercharger kit w/V3 upgrade, Random Tech ceramic-coated LT headers w/hi-flo cats and Corsa Extreme exhaust. New dyno #'s 611rwhp/583tq//Currently under the knife

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12-06-2012, 05:11 AM	#8
thecorvettemechanic Smokin Member Join Date: Dec 2012 Location: Connecticut Posts: 5 My Gallery	HI there, The key is driving. If you reference your owners manual on the 2006, they actually say that you shouldnt have to. This is because Dexron 6 is a semisynthetic fluid and doesnt oxidize like the older stuff does. This being said, I recommend to have the fluid COLOR AND CONTAMINATION checked. This means, removing the drain plug, dripping a few drops onto a white piece of paper and looking at it. All Dexron fluids will turn brown over time as the fluid ages because the dye wears out. That does NOT mean it needs changing. If I see any heavy particles in the fluid, is when I recommend changing it. Thats because the fluid suspends contaminants and these need to be removed. To Drain and fill the 6L80 in your car, its not easy. The fill plug is in the top of the case and the actual level plug looks like the drain plug on the transmission pan. I would suggest, if its not driven agressively, not to worry about it. If you have gone 5 years without a change, it certainly would not hurt it, but its not necessary. Allthebest, TCM

12-06-2012, 01:52 PM	#9
fishslayer143@yahoo.com Smokin 5000HP+ Posting Maniac Join Date: Jun 2009 Location: New Iberia LA Posts: 6,894 My Gallery	I see you just joined, TCM.. welcome to Smokin Vette

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