View Full Version : atf in manual trans

10-30-2006, 01:23 PM
just a question i own and 87 samurai and i was told i can run atf in my 5 spd trans for winter cuz its thinner and wont be as hard to shift when its cold .... will it hurt any thing is this good or bad ? has any one done this befor?[cheers]

10-30-2006, 01:30 PM
i think it is ok to run atf all year around. I'm not sure tho, i run it in my powersteering

10-30-2006, 08:28 PM
I had a F250 in '88 that used the Mazda 5 speed & came with ATF in the trans. Don't see how it would hurt in the winter, just change it every engine oil change & maybe back to gear oil in the spring?

10-30-2006, 08:30 PM
I had an acura that used 10w30 in the tranny.

10-30-2006, 09:29 PM
I wouldnt do it
when the tranny gets warm the atf will thin out to much and we`re not cold enough here in the LM to prevent that.
If anything use 20wt30 motor oil thats thinner than gear oil but thicker than atf and will keep the gears bearings and bushings better lubed