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Thread: Dexron III vs Dexron VI
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05-06-2010, 05:37 PM #1
Dexron III vs Dexron VI
Curious as to what engine nut has to say about this or anyone else?
dexron VI is supposed to be new and improved dexron III. GM TSB states that current and prior automatic transmission models that had used DEXRON III must now only use DEXRON VI
oil film thickness increased by 20%
foam /aeration improved 150%
shear stability improved 200 %
fluid oxidation improved 100%
__________________09 21v LAUNCH
99 Outback LS. Sold
run your engine after you change your oil
68 th Member. WS420,HSE Revolution, OJ 466, Acme1157,1100 sacs,Kicker HLCD's n IX500.4, Supra Coolies
Doug
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05-12-2010, 08:26 PM #2
anybody going to chime in?
09 21v LAUNCH
99 Outback LS. Sold
run your engine after you change your oil
68 th Member. WS420,HSE Revolution, OJ 466, Acme1157,1100 sacs,Kicker HLCD's n IX500.4, Supra Coolies
Doug
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05-13-2010, 10:22 AM #3
I thought it was backward compatible. This thread seems to indicate it is backward compatible with Dexron III and older fluids. Some posters claim lower temps in the transmissions as well. It also says it's a partial synthetic blend.
http://www.gminsidenews.com/forums/f...-vi-6-a-64757/My Mom said I'm not allowed to get wet!
2008 LSV (sold)
2000 Outback LS (sold)
LLTR!!!!!!!!
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05-14-2010, 07:17 PM #4Junior Member
- Join Date
- May 2010
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- Neenah, WI
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- 24
yes, its backwards compatible in all vehicles requiring dex III, and it is a better fluid as DOCDRS showed. my automatic transmission teacher runs it in all of his GM vehicles, new and old. as far as use in the boat i would imagine it would be the same or better.
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05-14-2010, 08:10 PM #5Senior Member
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- Oct 2004
- Location
- Marietta, GA
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- 297
If I change the fluid. Can I use my Oil-extractor pump? How many quarts do you think it will take to refill the tranny?
2005 Moomba 23 XLV
340 HP, Clarion 5 HU, 2 Clarion wired digital remotes, 2 Wetsounds 485's, 6 Wetsounds XS 650's, 1 JL 12w6 Sub, 1 Wetsound WS420, 2 JL 300/2amps, 1 Wetsounds Sync 4 amp, 1 JL 500/1 amp. Teak swim platform, Perfect pass. Flip up Bow Light, Chrome tower Nav Light, Chrome thru hulls, Black Bimini, 2 750 Flyhigh bags, 1100 center Flyhigh bag, Acme 1235 14.25 x 14.5 prop, Dual battery system. Evolution Cover. Chrome Blower Vent Covers.
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05-14-2010, 08:29 PM #6
I just did mine a week ago. You can use your extractor no problem. It won't get it all though. Manual says 2 quarts but go easy and keep checking after 1.5qts otherwise you'll over fill.
2007 Mobius LSV
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05-15-2010, 04:42 PM #7
If you have a vdrive, or can feel the 2 bolts on the underside of the tranny , drop the screen cover plate and you'll get another pint out of the tranny( but get something to catch it) and or remove completely to service the screen as well....there is a how too in the how to section
09 21v LAUNCH
99 Outback LS. Sold
run your engine after you change your oil
68 th Member. WS420,HSE Revolution, OJ 466, Acme1157,1100 sacs,Kicker HLCD's n IX500.4, Supra Coolies
Doug
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05-22-2010, 01:46 AM #8
I went to get some tranny fluid and the Castrol Dex/Merc ATF says on the back "Do not use this ATF in applications calling for Dextron-VI." So if you have a system that uses Dex6 then it is not backwards compatible.
1998 Mobius
310 HP PCM
SOLD
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06-28-2010, 06:36 PM #909 21v LAUNCH
99 Outback LS. Sold
run your engine after you change your oil
68 th Member. WS420,HSE Revolution, OJ 466, Acme1157,1100 sacs,Kicker HLCD's n IX500.4, Supra Coolies
Doug
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06-29-2010, 11:46 AM #10
Well said. People confuse this all the time.
My Mom said I'm not allowed to get wet!
2008 LSV (sold)
2000 Outback LS (sold)
LLTR!!!!!!!!