Fwd, 5 spd, gear oil.

[v8s_are_slow]

Okay, I'm doing my clutch tonight. No one has the Penzoil or Redline locally. The dealer is telling me they have a GL5 80/90w that they can sell me. Another place has Amsoil in 80/90w that's the synthetic. Any opinions on what I could use? It's a higher mileage tranny, not a new one. But I DON'T wanna have tranny issues. Thanks.

 

[v8s_are_slow]

Anyone?

 

[bane3d]

TurboGlenn was just talking about this. He said that his transmission guy recommended GL-4, not 5. He went out of his way to find it in fact. I'd wait a little for someone with more experience to chime in though.

d

 

[v8s_are_slow]

Yeah, I've been searching all over the forums for good answers. Saw in one thread where someone mentioned oil from the dealer. But they're saying they have GL-5 80/90w, and that they're out of the GL4. Their lead tech is saying that it'll work but I don't particularly trust them on that one. So I'd like to be on the safe side and ask someone with some better experience/knowledge. I'm holding off until I get a pretty firm answer on this.

 

[bane3d]

In case you missed it, this is the comment I was referring to:

Mitsu oil was recomended, but he said any oil that was Gl-4 (and not GL-5) would be perfect. I drove to the furthest away NAPA there is to get some. Everyone had GL-5, but i wanted to put in exactly what Jon said to, so i did. IT was shifting quite better on the way home from teh test drive, but with the roads being so cold and traction so scarce, i couldn't tell if i was getting LSD locking up or not. I really want to fell it like we can in our road race cars when we swap them. I hope it;s the same on a FWD as a RWD as far as feel of the "posi-locking" action

We'll see. It was a rough nite getting it all together after having it apart over a week and it being 17 degrees out when we started and it kept getting colder. Overall i'm happy so far, i just want to get ahold of jon to see if it's only high RPM shifting i have to keep away from, or if i can't lay into it WOT in any gear yet.

How long was it before you started beating on yours? Jon told me 500 miles of city driving so i'm going EVERYWHERE this weekend and taking the non-interstate routes

 

[turboglenn]

Yes, the GL-4 is supposed to not be as slippery as GL-5, therefor will allow the synchros that rely on some friction to match gear speeds faster for quicker shifts and better synchro life.

I found some for 6.00 a quart at the NAPA, it took just over 2 quarts(2.3 to be exact) to start running out the fill hole. I would try and get the same fluid, even though my trans is built, it's still a mitsu tranny with mitsu synchros and parts, so i would try and get GL-4 either way...just make sure it doesn't say GL-5/Gl-4/GL-3 because it's just GL-5 at that point. It must say plainly on it "API GL-4" to be what i was told to buy for my rebuilt tranny