Automatic Transmission 2-Speed thru 10-Speed GM Autos | Converters | Shift Kits
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View Poll Results: WHAT BRAND TRANNY FLUID ARE YOU USING?
CASTROL
9.62%
VALVOLINE
17.31%
MOBIL 1
16.83%
OTHER
56.25%
Voters: 208. You may not vote on this poll

Brand Of Tranny Fluid Are U Using!!

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Old 11-23-2006, 01:46 AM
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Originally Posted by TransAminal
I don't see how saving a couple bucks is worth using inferior products in your rather expensive transmission.
I don't think that it's inferior. I use it personally, and I sell it to my commercial customers also, who use it without issue.

I work at Advance Auto - when we recieve shipments, it all comes at once, from all different brands. We recieved one shipment of Advance Auto brand ATF, along with Valvoline ATF. A customer bought the Advance Auto brand, opened it up, and it was clear fluid with a gooey/sticky consistancy. It also smelled terrible, not anything like ATF THe Valvoline brand was fine, no issues at all.
I work for Advance also, and remember that particular batch. I seem to recall that they called back that batch to fix the issue, and also issued a memo saying that the fluid was fine, it just didn't get all of the color that it needed.

I can go on and on with examples of the store brand being inferior, believe what you want, but my opinion is a good 80% of it is garbage.
Buy what you want. I can't stop you. Store brand is usually made by a name brand manufacturer and is EXACTLY the same thing, just without all the advertising support or manufacturer's label. That's the way it is across the board.

Personally I've never had a problem buying stuff that's store brand, regardless of which store it comes from. I don't need a brand-name to keep me happy.



Anyway, as stated before, I don't keep the fluid in there long enough to matter anyway. In fact, it's time to change it, and I'll take $9.88 per gallon for Advance brand vs $14.88 for Valvoline any day. Especially when I need 2 gallons. My 4000 stalled, 79k mile, daily driven transmission seems to like it just fine...
Old 11-23-2006, 01:53 AM
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Originally Posted by mullenh
Note: a transmission service only relaces about 1/2 of the fluid! where as a transmission flush changes all of it (about 16 quarts i think).
Yeah, but you have to make sure that the operator of the flush machine knows how to use it. If they hook the hoses up backwards, you get any clutch linings or metal shavings forced backwards into the seals.

Have you seen the average employee at a quick-lube establishment lately? 'Nuff said.

No thanks, I'd rather just change it often. It all got changed back in February anyway when I did the converter.
Old 02-05-2007, 02:13 AM
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Napa dexron 3 atf. Works like a champ and is cheap.

Ski
Old 02-05-2007, 07:38 AM
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I actually read the user's manual. It said dexron III with mercon so I wouldn't use anything else. I bought some Coastal fluid for the converter swap I'm doing soon. These manufacturers have to meet the same SAE requirements so I don't see why it would matter as long as my trans temps stay low with it.
Old 02-08-2007, 08:14 AM
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Valvoline.
Old 02-08-2007, 03:44 PM
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DIY 100% ATF flush: https://ls1tech.com/forums/showpost....1&postcount=10
Old 02-12-2007, 03:40 PM
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^^^ can we get one with pictures!!
Old 02-12-2007, 07:20 PM
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Originally Posted by DOUBT IT
Yeah, but you have to make sure that the operator of the flush machine knows how to use it. If they hook the hoses up backwards, you get any clutch linings or metal shavings forced backwards into the seals.

Have you seen the average employee at a quick-lube establishment lately? 'Nuff said.

No thanks, I'd rather just change it often. It all got changed back in February anyway when I did the converter.
You may be right about a quick lube place with $9.00 an hour kids. I was not referring to a quick lube place though. A profesional shop is what I had in mind. We do about 5 a week.
Old 02-16-2007, 02:29 PM
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Originally Posted by 01WS6er
Yep, I also use the store brand. It is made by a major brand and it doesn't carry the expensive price. Just don't use synthetic.
Old 02-16-2007, 06:07 PM
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Redline synthetic Racing ATF (=Type F style) in my Hughes-built 4L80E.

I also ran their Hi-Temp synthetic ATF in my built 4L60 for 6 years without any problem. Additional external filter and large cooler.

Jim
Old 02-16-2007, 09:08 PM
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Originally Posted by TXZ28LS1
^^^ can we get one with pictures!!
I'll have to get a digital camera first, but when I do those will be the first pics I'll take...

(my Mrs won't let me use hers... "you're all greasy..." ).

Old 02-17-2007, 06:37 AM
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I use Dex3 from Advanced Auto.

All this oil has to meet specifications, so It has to do the job it's intended for. I don't think one brand is going to be that much different than another unless your talking synthetics. I just don't think its worth the money to buy a Valvoline over a auto parts house brand.

Motor oil is a little different I think. It comes from different base stocks so the oil that is refined better is going to be different than like a Group 1 oil.

Last edited by Ls1Envy; 02-17-2007 at 07:27 AM.
Old 03-06-2007, 01:01 PM
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Regular crappy advanced brand no synthetic ever used.
Old 03-15-2007, 04:33 PM
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you know what's funny... I used the Advanced cheapo brand in my 700R4 after I changed the converter in my old Camaro. It wasn't enough to fill it up; so there I was i the middle of the night, happy that I got it put al back together and could drive it again; anxious to get it out, so what did I do? I re-used the old fluid that was still sitting in the drain pan over to side that had been sitting there for about three weeks; I think it had a few grass particles in there as well... After I used that and filled it up, I put a shift kit in it about a few months later and drove the living hell outta that car for the next year. I never had a problem with it. I even manually shifted it, downshifting included, very very often. Nice explanation on the synthetic. I have always heard that, too.
Old 03-29-2007, 10:49 PM
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Dextron III
Old 04-01-2007, 01:28 PM
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Gonna go Valvoline with 1/2 Dex III and 1/2 Type F
Old 04-01-2007, 03:37 PM
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The cheapest none synthetic i can fined
Old 04-01-2007, 06:21 PM
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Cool Only Amsoil

I only use Amsoil.
http://www.amsoil.com/StoreFront/atf.aspx
Old 04-02-2007, 07:03 AM
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As long as you get the Dexron/Mercon III, why would you waste money on RP or Amsoil? People get brainwashed into thinking more $$$ = Better product.
Not necessarily so. Store brand is fine, just change it often according to how much abuse it takes. Spend $5.00 a quart if it makes you feel better.

I have a Coan built 4L60E/Vig 3600 vert and am pushing 507 RWHP N/A,
Yet I use Autozone Coastal brand ATF. Why throw money away?

No synthetic in the trans, only in the LS1 427 stroker. Mobile one in that.

Last edited by ChevyGoldfinger; 04-07-2007 at 03:38 AM.
Old 04-21-2007, 08:18 PM
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Castrol Transmax Z
Full synthetic


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