What weight oil do you use?
08-20-2004, 06:08 PM
#1
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What weight oil do you use? What weight gear oil do you use with your 12-bolt?? I have 80W90 right now and wondering if a heavier weight would be better with noise, etc.....
08-21-2004, 04:42 PM
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Originally Posted by Hardtop
80/90 is the right oil to use.
Bruce
Bruce
Was going to fab up a little catch can that will allow the oil to drain back in the pumpkin but would rather not go thru the hassle. The rear has done this when I first got it and is still doing it after I had a local "professional" go thru and rebuild the rear with new gears and bearings, etc... The whine is gone now because I'm using a harder gear but the pressurizing issue is still there.
09-01-2004, 08:49 PM
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Orange,
FWIW, I just changed the factory rear end fluid in my 02 Z with Coastal 85W-140. I drove it afterwards for about 10 miles and the rear seemed to be working pretty smooth. I really can't tell if there is a difference between the factory fluid and the Coastal one. No noise, rattles or otherwise abnormal sounds. So far so good!
Also, I replaced the Amsoil universal ATF in my M6 tranny with Pennzoil Synchromesh. As with the rear end fluid, everything seems to be working the same as before.
FWIW, I just changed the factory rear end fluid in my 02 Z with Coastal 85W-140. I drove it afterwards for about 10 miles and the rear seemed to be working pretty smooth. I really can't tell if there is a difference between the factory fluid and the Coastal one. No noise, rattles or otherwise abnormal sounds. So far so good!
Also, I replaced the Amsoil universal ATF in my M6 tranny with Pennzoil Synchromesh. As with the rear end fluid, everything seems to be working the same as before.
09-01-2004, 09:04 PM
#5
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Z,
Thanks for the info. ABout a week ago I changed my rear fluid from Lucas 80/90 to Lucas 85/140 just like you. It's way quiter than it was before and has less tendency to spew out the breather. Such a easy fix for all my Moser annoyances.
Thanks for the info. ABout a week ago I changed my rear fluid from Lucas 80/90 to Lucas 85/140 just like you. It's way quiter than it was before and has less tendency to spew out the breather. Such a easy fix for all my Moser annoyances.
09-01-2004, 10:04 PM
#6
TECH Fanatic
I use strait 140wt in just about everything except the front end differentials of four-wheel-drives, that is the normal 90wt. I myself dont like using a multivis in a differential and for the most part, I use parafin based oils with suspended moly.
I have even been known to use a strait ISO9000 350wt in chassis' that stand on the ragged edge or driven in desert elevations.
I have even been known to use a strait ISO9000 350wt in chassis' that stand on the ragged edge or driven in desert elevations.
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09-02-2004, 04:06 PM
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Originally Posted by NHRATA01
Hmm, I'm wondering if maybe I should switch over to the thicker oil. Might quiet some of the whining. It should also offer a bit more "cushion" for the gears when subject to the driveline shock from clutch dumps.