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February 08, 2012, 06:25:36 PM
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Author Topic: Informative Thread On Transmission Oil/Fluid  (Read 1933 times)

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Offline skyphix

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Informative Thread On Transmission Oil/Fluid
« on: July 20, 2006, 08:01:20 AM »
See this thread
http://www.subaruoutback.org/forums/showthread.php?s=&threadid=5311


Basically, don't use Mobil1 Gear oil in your transmission. Its fine in the rear dif and the crankcase (your engine), but not the transmission. Something about the sulfer in Mobil1 gear oil causing problems with the "soft" Subaru gears in 5MT transmissions. STi owners can use whatever they want (or anyone else with hardened gear sets) but, when both SOA and Mobil say don't use Mobil1 in the transmission, I think I'll avoid it at all costs. In that thread there is also a list of the recommended transmission gear oil from NASIOC.

I know beat22 (Devin?) is rebuilding his transmission right now, so hopefully it will at least be useful to him. I am losing the hardened gear sets, so this is of concern to me too  :|
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Eric

Quote from: RedRoof2 on December 08, 2011, 11:29:57 AM
Quote me now while I'm feeling good about it.  I've decided a WRX will be the vehicle that replaces the Jeep.  I can't see paying Evo prices or justifying purchasing a halfassed/beat to death example for the same asinine amount of money.  For an affordable, point to point, all-weather capable performance car, a wagon fits the bill.  A swapped wagon, even better.

Offline homurcules

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Re: Informative Thread On Transmission Oil/Fluid
« Reply #1 on: July 20, 2006, 11:03:50 AM »
shit, time to change my gear oil!!!


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Offline beat22

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Re: Informative Thread On Transmission Oil/Fluid
« Reply #2 on: July 20, 2006, 06:28:36 PM »
yup devin it is :-D

i was considering royal purple when i get my trany back from gearboxtech :evil:... ERIN!how do you like the royal purp so far?...any differences at all?
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Offline gedwrx

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Re: Informative Thread On Transmission Oil/Fluid
« Reply #3 on: July 20, 2006, 10:56:52 PM »
royal purple = teh badddddd

Moutl (Canadian MIX only) for tehhhh win!!!

you can get it here

http://performanceoilstore.com/proddetail.asp?prod=318121

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Offline beat22

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Re: Informative Thread On Transmission Oil/Fluid
« Reply #4 on: July 20, 2006, 11:02:12 PM »
royal purple = teh badddddd

can i ask why?
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Offline homurcules

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Re: Informative Thread On Transmission Oil/Fluid
« Reply #5 on: July 20, 2006, 11:57:51 PM »
when i got my current RS, it had redline it the tranny.   i wanna go back to that.  hard to get down by me though. ( or atleast i havent seen it anywheres here yet...)
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Offline skyphix

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Re: Informative Thread On Transmission Oil/Fluid
« Reply #6 on: July 21, 2006, 08:12:56 AM »
a LOT of people with LGT's swear by Moutl (motul? however the hell you spell it). A lot of WRX'ers swear by Redline ShockProof. As long as it isn't Mobil1 :D
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Quote from: RedRoof2 on December 08, 2011, 11:29:57 AM
Quote me now while I'm feeling good about it.  I've decided a WRX will be the vehicle that replaces the Jeep.  I can't see paying Evo prices or justifying purchasing a halfassed/beat to death example for the same asinine amount of money.  For an affordable, point to point, all-weather capable performance car, a wagon fits the bill.  A swapped wagon, even better.

Offline homurcules

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Re: Informative Thread On Transmission Oil/Fluid
« Reply #7 on: July 21, 2006, 10:42:12 AM »
isnt motul one of subys rally sponsors?
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Offline Red04WRX

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Re: Informative Thread On Transmission Oil/Fluid
« Reply #8 on: July 21, 2006, 12:28:44 PM »
I might switch to redline if the royal purple really ends up sucking.  I read very mixed reviews about it on nasioc.  we'll see what happens.. so far no 1st gear grinds (which were bugging the shit out of me) 1 3rd gear and 1 4th gear though.. so we'll see.
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Offline AussieDan

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Re: Informative Thread On Transmission Oil/Fluid
« Reply #9 on: January 26, 2007, 10:56:15 PM »
Quote from: gedwrx on July 20, 2006, 10:56:52 PM
royal purple = teh badddddd

Moutl (Canadian MIX only) for tehhhh win!!!

you can get it here

http://performanceoilstore.com/proddetail.asp?prod=318121
I too would like to know why you're against Royal Purple, I will be changing the oil in the RS and Legacy shortly so I'm 'in the market' as it were.

I was considering buying a case of the Motul Motylgear 75w90.  It seems like good oil and isn't as spendy as the GEAR 300.
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