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Motul Gear 300 75W90 Gear Oil 1QT ( Part Number:MOU 105777)

Motul Gear 300 75W90 Gear Oil 1QT - Universal

MODEL # MOU 105777
Manufacturer Part # 105777


MSRP: $26.54

Ships within 3-4 weeks
Free shipping on all orders over $200.00!


If you're in the market for the ultimate gear oil, then you will be pleased with the Motul 300 75W90 gear oil. Motul is a worldwide trusted lubricant for motorsports or spirited driving. Motul lubricants are employed in race cars, or in everyday vehicles. The 75W90 is a 100% synthetic lubricant for those looking for the best protection against friction and wear. 

This is the perfect lubricant you can use in gear boxes and rear differentials. All Motul lubricants have been test-proven to have great pressure resistance in all types of cars while driving through various types of conditions. 

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Brand: Motul
Class: GL4/GL5
Friction Modifier: No
Type: Synthetic
Volume: 1 qt
OEM Approval: MIL-L-2105D

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.



Verified Purchase

drexblasties 7 months ago
Changed my trans and diff fluid being that I have no idea if these fluids have been changed before and I bought the car used at 64k miles, now has 71k. Shifting feels very smooth and the trans is a bit more quiet. I will be buying this again
Verified Purchase

Gear oil
Cgm_sti 10 months ago
I have tried mobil 1, shaeffers gear oil, and oem fluid. Neither make a noticable difference like motul300. Daily driving is much better and i noticed a big improvement on 1st and reverse. The only downside is its pricey, but you cant cheap out on these cars.
Verified Purchase

Best oil I've had in my transmission
Easystvw 1 year ago
Had problems with my Trans ever since the factory service at the 30 or 45k mile mark when they changed fluid. Had notchy feeling shifts and had to double clutch into 5th anytime over 3000 rpm. The Red line 75w90 I put in after that change was an improvement but never got rid of the problem. Have 150k on the car now and went with this oil after I read some reviews. Changed the oil and after about 20-30 miles a noticed a huge difference in shifts. Moves through gears like butter and no problems into 5th. It's spendy but I won't put any other oil in my gearbox now that I've tried this.
Verified Purchase

Liquid of the gods
Stephen G 2 years ago
So I bought my WRX with 30k (2012) miles on it a few years ago. Shifting was always notchy and weird. They said they put new fluid in it so i just thought the previous owner beat into the transmission a little. So once I got to 50k I was tired of the way it was shifting and figured they put crap in there and decided to throw this in there because of the reviews. Drained old fluid looked clear and healthy still. Filled my car up took it out for a drive and holy *****
Verified Purchase

Great product 07 Sti
weststi10 2 years ago
Second go round for me on this oil and it never disappoints. Smooths out the shifts nicely but still maintains that notchy feel when going through the gates. Going into first and reverse is also significantly better over the oem fluid. Worth the higher price in my opinion

  • Q: 03 WRX 4EAT  ahotewolf 3 days ago


    How many quarts will I need for front and rear differentials for my automatic?

    • A: We recommend checking your service manual on the amount of fluid required for the 4ETA.

      Jared A. 6 hours ago
  • Q: 16 WRX  Tekie 4 months ago


    Is this compatable with the newer gen WRX transmissions? Looking at changing front trans/diff and rear diff to this in a 2016 WRX.

    • A: Yes this gear oil would be a great option! You would need 6 quarts for the trans and rear diff.

      Josh C. 4 months ago
  • Q: service interval  wrx-for-life 5 months ago


    Hello i was considering using this gear oil in my 02 WRX to help the common 1st gear grind issue and i wanted to know since it is ester based how long would it last before i needed to change it/ service intervals/ long lasting?

    • A: It is recommended to replace gear oil every 30 thousand miles but if you are driving the car aggressively we recommend that you change it every 15-20 thousand miles.

      Jared A. 5 months ago
  • Q: STI Type RA  Alberto De Santa Anna 1 year ago


    Can i use this in my STI Type RA transmmision with Rear R180 and Front Sure track Diff?

    • A: You can use this oil with the RA transmission and the r180 diff.

      Brady R 1 year ago
  • Q: Gear Oil  michaelkeleman10038 2 years ago


    Looking to flush and front and rear diff in a 2013 WRX. How much fluid goes in the tranny and how much in the rear diff? Any recommends products? Looking at Motul

    • A: You will need 4 quarts for the Transmission/Front Diff and 1 quart for the Rear Diff. Motul Gear 300 is an excellent choice for both applications.

      Josh P. 2 years ago
    • A: So 5 quarts to do the whole car? im looking at this too

      Stephen G 2 years ago
Universal Product
This item is non application specific.
Please verify compatibility before purchase. May require some modification for proper installation.