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Tranny fluid

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Old 05-07-2009, 10:19 AM
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Originally Posted by metroplex
Maven: Would a 75W-90 GL-4 or GL-5 safely work in the 08-09 SS/TC F35/MU3? What happens if the gear oil has friction modifiers, I see you recommended the Redline 75W-90 NS (no friction modifiers).
You should not use friction modifiers in the F35/MU3 transmission.
Old 05-07-2009, 10:20 AM
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Originally Posted by joeworkstoohard
man, i'm glad that i have an F23 trans.

just a few quarts of dextron VI, and i'm solid
Yeah I am actually gonna swap out to Redline D6 in a few miles here. See how that works.
Old 05-07-2009, 09:25 PM
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Originally Posted by Maven
Yeah I am actually gonna swap out to Redline D6 in a few miles here. See how that works.
yeah? how long? i'm just about due for a change, and i'm not opposed to trying something different.
Old 05-07-2009, 09:42 PM
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Originally Posted by Maven
Yes Redline is a brand RedLineOil.com

75w90 NS is designed for transmissions and transaxles.
The reason it says its for "non limitied slip" applications is because there is a version of this oil(plain 75w90) that has limited slip rear friction modifiers in it.

You DONT want that one.

Make sure you use the 75w90NS EVEN if you have G85, the G85 diff is a geared unit and doesnt need friction modifiers.

If you put regular Redline 75w90 or any 75w90 that has limited slip additives in it youll shift like **** and potentially ruin your blocker rings in the synchros.


You want THIS>>>http://www.redlineoil.com/products_g...5&categoryID=6

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XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

I just looked at the Royal Purple stuff, I dont think I would use that it, it has the additives I was talking about for clutch type limited slips, thats bad for the F35. They however recommend it for all manual transmissions that call for a GL5 75w90. I'd go with Redline unless youre a diehard RP fan
good 2 know
Old 05-07-2009, 09:53 PM
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Originally Posted by joeworkstoohard
yeah? how long? i'm just about due for a change, and i'm not opposed to trying something different.
Well....if CDOC has it in stock tomorrow Ill swap this weekend. If not Ill have to order some and then itll be whenever I get around to it, Ive got interior stuff, brake stuff, other peoples brake stuff, other peoples trans stuff, work and another race in 2weeks going on right now.....SO it proly wont be till June if I dont do it this weekend.

I still havent even seen Wolverine. wtf.
Old 06-12-2009, 07:41 AM
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so i just did a tranny swap (blew the diff) I got an F23 and the recomended is 75w90NS from Red Line? and that gets filled from that black cap on the top of the tranny or the torx bolt beside it?
Old 06-12-2009, 09:51 AM
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Originally Posted by 06Pursuit
so i just did a tranny swap (blew the diff) I got an F23 and the recomended is 75w90NS from Red Line? and that gets filled from that black cap on the top of the tranny or the torx bolt beside it?
NO!!!!!!!!! F23s use ATF.

If youve got an F23 the recommended is Dexron type fluids. 05-06s youre fine with Mobil1 ATF, works great, or GM Manual Trans fluid(88861800) 07-09 you should be using Dexron VI

You dont fill it through either of those on the top. It gets filled/checked a the port on the side of it, look in through the left wheel and there will be a plug/bolt at about 3 o'clock in relation to where the axle comes out....thats where you fill it. Put fluid in til its level with that hole.
Old 06-12-2009, 06:27 PM
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wow lol i was way off lol thx maven. so why is it that a manual tranny uses atf? is it cause its lighter?
Old 06-12-2009, 07:14 PM
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Most modern manuals use ATF because of the materials used in the gearset, synchros, etc... My 07 Mustang GT's TR-3650 uses a Mercon/Mercon-V ATF.
Old 06-12-2009, 11:23 PM
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I'm sure it's answered in here, but what does my 5-speed 2.2L use?

I should definitely change mine.
Old 06-13-2009, 03:18 AM
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Dexron IV
Old 06-13-2009, 11:25 AM
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I can't use any of that fancy Royal Purple stuff?
Old 06-13-2009, 12:58 PM
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Originally Posted by xxxxsh4d0wxxxx
I'm sure it's answered in here, but what does my 5-speed 2.2L use?

I should definitely change mine.
Dexron VI. or Redline D6. I havent put anything else in a newer F23 and I wouldnt risk it.
Old 06-14-2009, 09:49 AM
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Originally Posted by Maven
Dexron VI. or Redline D6. I havent put anything else in a newer F23 and I wouldnt risk it.
Yeah, I've heard good things about the Redline stuff.
Old 06-14-2009, 09:56 AM
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I'd use the Redline equivalent to the GM fluid in my F35/MU3 if there was such a product. I have Redline High Temp ATF in the TR-3650 in the GT... good stuff!
Old 07-09-2009, 06:20 PM
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Originally Posted by Maven
Syncromesh isnt designed for either Cobalt manual transmission.

The F23 in the 2.2/2.4 uses Dexron VI
The F35 in the 2008-9 2.0's uses P/N:88862472
this is a new number than was used for the 2004-2007 trans'. This "new" fluid is a 75w85 GL4 GM switched to this to help fuel economy, and make the synchros happy, its also available from Mitusbishi(the EVO 6speed uses it) as DiaQueen, and its actually Castrol Syntrans, if you want non dealer specific stuff. Its not cheap because its synthetic, but its good stuff, it also gets used in the big NVG4500 trans in trucks.
Nope, the NV4500 uses a different GM 75W-85 GL-4 synthetic manual transmission lube: 12346190, aka Syn Torq LT.

The equivalent for that is the Amsoil MTG and Red Line MT-90.
Old 07-14-2009, 01:45 PM
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subd for later
Old 07-14-2009, 01:52 PM
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I found a webpage dedicated to the Saab F35 and someone's experiences with running the F35 with 500+ hp engines. He said that most of the F35s that come back for repair have worn out synchronizers from using aftermarket fluids. It looks like the ONLY safe thing to use in the F35/MU3 is the GM fluid specified in the manual.
Old 07-21-2009, 11:59 AM
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what kind of gear fluid does the 06 2.4 use? my gear shifter is rough and not as smooth as it should be.
Old 07-21-2009, 02:01 PM
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Originally Posted by RedBalt44
what kind of gear fluid does the 06 2.4 use? my gear shifter is rough and not as smooth as it should be.
Mobil1 ATF is what i recommend for those. Good stuff
Old 07-21-2009, 02:11 PM
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Originally Posted by Maven
Mobil1 ATF is what i recommend for those. Good stuff
cool thanx
Old 08-01-2009, 02:19 PM
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sorry if it is already in the thread but i have a g85, what kiinda fluid do i need. i want something i can go buy at advanced or something or is that a bad idea
Old 08-01-2009, 03:32 PM
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Originally Posted by Bigmacss/sc
sorry if it is already in the thread but i have a g85, what kiinda fluid do i need. i want something i can go buy at advanced or something or is that a bad idea
Thats not a good idea. Best is GM #21018899, if you absolutely cant find that, Redline MTL, or in hot areas Redline 75w90NS also will do. I dont recommend any other fluids at this time, very few others will either.
Old 08-01-2009, 03:39 PM
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ok man thanks, i will hit up the chevy dealer monday for the fluid then
Old 08-01-2009, 04:19 PM
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Originally Posted by Bigmacss/sc
ok man thanks, i will hit up the chevy dealer monday for the fluid then
Try Saturn too.


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