With Extra-S not available anymore, what the best thing for our 5MT now?

Time for my transmission fluid change. What does everyone recommend nowadays?

I have a 20L drum of it in my garage My dealer told me Canada wasn't going to get it anymore and he sold me that one at his cost and he had one other.

 

You can still get subaru trans fluid, I just don't think it's exactly the same.

 

https://www.amazon.com/Subaru-75W90-Extra-Transmission-Fluid/dp/B0731SB4M3

 

Otherwise I'd use Motul

GL-5 is the requirement. I've used Valvoline in the past and it was fine.

Most will now say motul is best but I've never tried it. I plan on trying it when my delvac needs changed.

 

Here is my list (favorite to least)

 

1. Extrs-S (no longer available)

2. Mobil Delvac 75W-90

3. Redline 75W-90NS

I've been running Walmart's Supertech GL5 fluid and it's doing just fine. All of my grinding issues were related to wearing pressure plate. When the new clutch went in the grinding went away (I started using SuperTech a while before doing the clutch).

I've tried the following, all 75w-90. Supertech synthetic blend, Amsoil severe gear, subaru extra-s, red line ns.

 

Red Line 75w-90NS is my favorite.

Supertech is great for the price as well, you can't go wrong with that either. I prefer red line since it shifts better in cold temperatures.

 

I wasn't impressed with extra-s at all, I don't get why people love it so much.

Oh yeah, the new subaru stuff seems quite different from extra-s. But it's important to note with the link below, and uoa's/voa's in general, they don't show you everything that's in an oil. Ashless, non-metallic additives won't show up.

 

https://www.bobistheoilguy.com/forums/ubbthreads.php/topics/3557119/Re:_Subaru_High_Performance_Ge

Edited May 3, 2019 by apexi

Thanks guys! Drove around all morning to find Mobil Delvac but none carried it so I'll be going with Red Line

Motul Gear300 works for me.

As most of the long time members know, it's Motul Gear 300, its not cheap...but its the best stuff out there.

I've had great success with a mixture of Redline 75-90NS and Lightweight Shockproof. 170K on my '06 WRX using that without a peep out of the transmission.

Amsoil and keep trucking peeps. Quality and the stand behind there product. I have ran it in all my cars, 04 STI, EVO, 09 WRX, 08 Legacy, current 06 LGT.

Motul 300

Amsoil and keep trucking peeps. Quality and the stand behind there product. I have ran it in all my cars, 04 STI, EVO, 09 WRX, 08 Legacy, current 06 LGT.

 

May be it was just me but I didn't seem to have much luck their severgear oil.

 

I have a account with them and use there 5w-40 European Classic and their filters and do 7000 mile oil changes. May be I'll give servegear a try again. It is less money the Motul Gear 300.

About a year ago I changed my 5MT fluid using Mobil1 synthetic. After a few months I noticed a slight grind going into 4th gear. By this summer it was way worse and I thought I was headed for a transmission rebuild. After reading as many posts as I could find on the issue, I decided to try a 50/50 cocktail of Redline Lightweight Shockproof and Motul 300. The grind has disappeared and it shifts like butter in all gears, fyi. Should've looked here sooner!