105777 Set of 5 Gear 300 75W-90 Transmission Fluid 1-Liter Bottles

Best oil ever

High quality lubricant, 5 pack is good value.

Best lube in the industry.

The only fluid I will put in my 05 STI. I had a lot of transmission noise with the previous fluid, not the cool whine from nearly straight cut gears, a mesh sound but the old fluid looked great so I know it was fresh. I tried Royal Purple and had a slight improvement but not good enough. This fluid completely changed the feel of the transmission, super smooth, super quiet, very, very nice. If you have a Subaru with a 6MT look no further.

Used on a 2024 WRX. I changed out from the factory gear oil at about 2k miles. It was already pretty dark and had metal shavings in it. The Motul makes a noticeable difference in shifting. It's a lot smoother now, especially when cold. The drain bolt for the transmission is a bit difficult to get to but you can manage if you have jacks and stands. The rear pumpkin is not too difficult to reach. Trans oil amount is tricky to determine. Mine took a little over 3 quarts to reach the F line. Others have reported 2.8 quarts. The trick is to add about 2.5 quarts and then keep adding and checking the dip stick until you get to the F line. Make sure you are on a level surface. The rear, just keep adding oil until it overflows from the add port. Overall, it's not a bad job if you take your time.