[oneup]

I'm getting ready to change out fluid on my trans. I'm wondering what you have in yours... owners manual call for 75w-90 gl-5. I was thinking about getting a moble 1 75w-90. I've had good luck with redline products in my other cars in past. if I go with redline, should I use good'ol mtl or mt-90 or 50/50?

I know there aren't too many 5spd xj owner out there but please share your opnion.
thanks

 

[Jeremy_Cherokee]

I use the Lucas Oil 75w 90 and it seems to be really good. It's $15 a quart though and the AX-15 uses 3.3 quarts so it's not cheap.

 

[19OlllllllO41]

MT 90 is what is generally used in ax-15's if your using Redling products. Thats all I have ever put in mine, I recommend it 110% to anyone with an ax-15. I have heard of some people using MTL, but 99% of people use MT 90 I believe. Dont use regular 75w-90 (i.e. mobil 1) gear oil as the manual recommends...the sulfer in it will eat away at your brass syncros over time.

 

[oneup]

I'm in ohio and it gets pretty cold in winter time. I know mt-90 is little thiker than mtl and I don't want to be all notchy when it's cold. does anybody mix it to 50/50? how about penzoil synchromesh? I had a car that required gl-3 and gl-4 because of brass synchro.

 

[dbikers]

This stuff is great in the BA-10 in colder climates....really smooth shifting in any temp and it's about $6/qt at autozone.

 

[caspergotaz28]

Another vote for the MT-90.

 

[stoneattic]

DO NOT use GL-5 in an AX15!

X a billion on the MT-90.

Be aware that the AX-15 needs GL-3, not GL-5. GL-5 will corrode your syncos. Here's one of many threads on NAXJA about this:

http://tinyurl.com/3ym9fs

 

[101360]

MT-90 has worked good for me!

 

[Fargo]

I'm in ohio and it gets pretty cold in winter time. I know mt-90 is little thiker than mtl and I don't want to be all notchy when it's cold. does anybody mix it to 50/50? how about penzoil synchromesh? I had a car that required gl-3 and gl-4 because of brass synchro.

You've probably already got your answer but I'll revive this old thread anyway. I recently sent an email to Redline oil in reguards to a different car. For that vehicle they suggested mixing the MTL and MT-90. So apparently it can be done.