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Motul 90 PA Limited Slip Differential Oil 2.1QT (Subaru R180 Rear Diff) (Part Number: )
Motul 90 PA Limited Slip Differential Oil 2.1QT (Subaru R180 Rear Diff) (Part Number: )
Motul 90 PA Limited Slip Differential Oil 2.1QT (Subaru R180 Rear Diff)
Universal
Read 14 Reviews | 12 Q&As
Part # 100122
$24.17
msrp: $26.86


Ships in 24 hrs
Universal part

Features & Product Details

This is an Extreme Pressure Lubricant for Limited Slip Differentials.

Specially formulated for limited-slip differentials : Racing cars, Passenger Cars and Industrial applications.

Special formula includes a friction modifier for clutch-pack or plate type differentials to prevent dragging of discs.

Specifications

Brand: Motul
Class: GL-4/GL-5
Mfgr. Warranty: No Warranty
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days


Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
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REVIEWS & CUSTOMER MEDIA

14 Reviews
4.8 out of 5 Stars
5 Stars
(13)
4 Stars
(0)
3 Stars
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2 Stars
(1)
1 Stars
(0)
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No user media. You can upload a photo or video of your install by posting a review.
Worth every penny 12 days ago
graywolficus68952
I have a custom rear diff and I have been searching for the right oil. It is loud.. grouchy.. and clunky with the wrong oil. Added this oil.. and poof.. whisper quiet and smooth engagements. So glade i bit the bullet and picked this up.
  
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0 of 4 people found the following review helpful
*sigh* 3 years ago
EvenTheScore
I was recommended this oil for my 2004 WRX 5mt rear diff. Turns out it's for LSD clutch style STI differentials. NOT WRX!! So here I am running to find rear diff oil, while I'm halfway through a fluid swap. I informed the representative of the vehicles year, make, model, and transmission. And now I'm stuck with something I can't use, and a dry diff.
  
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Awesome!!! 4 years ago
iGhost
First off thanks to RSD for always having the dopest products! This stuff simply a must have if you have an 06' STI. Little of a pain to get it in the diff without making a mess but Motul fluids all the way!
  
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No problems 4 years ago
shaunisradd
Did a change about 3k ago. Did not have any grinds or weird noises before. Still going well after about 3,000 miles. Easy to do with a cheap hand pump from the parts store.
  
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Great Diff Fluid 5 years ago
mattm33691
Had a bit of diff chatter. Replaced fluid that was in there from previous owner with a quart of Motul 90PA and it's way better. Good stuff, and one of the few approved for the '04 STi rear diff.
  
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QUESTIONS & ANSWERS

  • Q: Gear 300 vs 90PA  Dario j2 months ago

    I have a 2002 wrx wagon and i see that the gear 300 fluid is reccomended for the rear diff but others reccomend using the 90PA for rear diff on a 5speed WRX. What oil should i use for trans and rear diff?
    • 1 of 1 people found the following answer helpful

      A:  We do not recommend 90PA for the WRX as it has open differentials and not mechanical limited slip differentials like the 04-06 STi. For the WRX we recommend Motul Gear300 for the transmission and rear differential. You will need 5qts total to complete the fluid change.

      Jared A. @ RallySport Direct 2 months ago  
        
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  • Q: LSD Differentials  jaymie981 year ago

    RSD, I have 2007 Subaru Forester XT with a JDM Forester STI 6 speed which has 2 Suretrac LSD,s (front & rear). I purchased the Motul 90pa for both diff & gearbox but the gearbox seems to have a slight wine & vibration over 70mph, any recommedations?
    • 1 of 1 people found the following answer helpful

      A:  It could be that the oil that you put in your transmission has a high viscosity which might give you a slight whine. However it could also be your clutch parts. I would start by diagnosing any clutch issues and if the clutch is all good go with a different trans oil.

      Tyler A. @ RallySport Direct 1 year ago  
        
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  • Q: 2009 sti   dubaru3 years ago

    Will there be any gains or positives to using this over the standard motul 300 in my rear diff? If not then Ill just purchase the motul 300. Secondly, what should I use for my front diff? I see everyone talking about tranny and rear diff but not front diff.
    • 0 of 0 people found the following answer helpful

      A:  This fluid is for clutch-pack or plate type differentials. In 07+ STi's that use a torsen you can simply use the standard Motul 300. The 90PA can be used, but its not needed as your Torsen LSD does not require a special fluid like a clutch type unit that the 04-06 STi have. This is not recommended for the Transmission(which houses the front and center diff) on the STi due to the friction modifier that is added, The Motul Gear 300 is a better option for the 6MT Transmission.

      guest569558ee2a8d252b708e85a3 @
        
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  • Q: 2013 WRX ?  jcerillo70215514 years ago

    Is this the right stuff i need to replace the rear differential fluid in my 2013 WRX Hatch? Thanks!
    • 0 of 0 people found the following answer helpful

      A:  No, you will want to use MOU 3178CZ.

      guest56ad69792a8d256e198b66b5 @
        
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  • Q: JDM 04 Sti  Ejzok4 years ago

    What's the different between PA90 and 300 (both non-LS and LS)??? Im so confus I run trackday twice a month, so please recommend which one should I be using for Gear and Rear Diff, thanks!
    • 0 of 0 people found the following answer helpful

      A:  The PA90 is more useful for clutch type unit that comes in this 04-06 models where as the 300 is a more generic gear oil. You could use either without any issues.

      guest57853c642a8d25b5018c44a7 @
        
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This Part Fits

Universal Product
This item is non application specific.
Please verify compatibility before purchase. May require some modification for proper installation.