Redline MT-85 GL-4 in SE30 transmission?

#1

Hi, new to Spec E30, but not tracking cars. Tried searching for this, but could not find anything. Just got a new to me SE30 and the PO said he used Redline 75W90 in the trans. I believe this is a GL-5 fluid, and I think I should be using a GL-4 fluid.

Found some previous postings tha tlisted the three types of fluids based on the trans label, and I believe I have a no label, so Redline MTL seems to be acceptable (not saying the “right choice” because not trying to start a trans fluid war).

Now, I have a bunch of Redline MT-85, which is a 75W85 GL-4 fluid. I use this in my G35, which has soft notoriously synchros and specifies a GL-4 fluid for that reason. It it safe to use MT-85 in my SE30? Or just go with the MTL?

thanks,
Mike

#2

ATF, change yearly.

#3

Man, 2 hours spent reading old trans fluid threads to arrive at MTL, and then you answer with ATF. Many thanks.

#4

Redline mtl. we run it in all of our cars and see great results. getting 5+ years out of gearboxes in rental race cars is a good testimonial.

Drive-gear.com

#5

MTL always for me. Once a year. Never had an issue.

#6

325E, speedo broken at 280k. ITA Car is 8 years old on same trans with ATF. YRMV:P

#7

Thanks all.