[BAS]

Originally Posted by Extreme86

Eneos Sustina 0w20 is good stuff for sure! Using it now as well. I would not recommend using GL5 Differential Gear Oil in the tranny though...hope you meant/implied the GL4 Motul Gear 300 for that! I am getting ready to try Pentosin MTF2 in my Aisin 6MT as I have one of the notchy shifters and Redline MT90 appears to have made it worse than the OEM fill. Looks like you've been busy doing some nice mod$ in between them pager calls!!

Edit: Just did some homework on the Motul Gear 300 GL4/GL5. Used for "racing gearboxes" and differentials. Oh well. Hopefully the GL5 rating will not impact yellow metals in the tranny as claimed by Motul. Our Manf. Specs call for using a GL3 but, that is an outdated rating and most MT oils are GL4s. I've read articles indicating GL5 used in transmissions will prematurely wear out brass on the syncros. FYI.

I have read so much material about the GL-4 versus GL-5 and brass metals/gear boxes that I cant take it anymore. I finally decided after reading and hearing from everyone that has made the switch to either the Motul or Pentosin it should be fine. I mean one it GL-4/GL-5 rated (Motul) and the other is the incorrect weight compared to what the manual suggests (Pentosin), so who knows...I take my chances. Let us know how it shifts when you swap out the Redline.