Dino for me. Been there done that.
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But I have read that the rear diff needs limited slip.
That would not create any problems?
Fwiw M1 75/90 has LS rating ( contains the add’s).
That said if your upwards of 200k I venture to bet the LS is so worn it's non functional, so LS gear oil prob is unecessary.
I used redline synthetic in all three places about 20k miles ago. Have always run them in my BMWs but since I had to buy 2 gallons to service the whole truck it was kinda expensive.
As for rear LSD, my 1998 has 250k+ miles and I think my limited slip diff still functions.
Don't you have a selectable locker and not a LSD?
Motul 75w90 best stuff around
98-99 LX has LSD rear and LCs had electronic lockers. I do hear that Locked LC rears are a direct swap for LX rear (the whole axle) but I can't seem to find any for a reasonable price anywhere.
For front and rear diff if open use SAE 90 since that is the actual spec for the 100 series and transfer put motylgear 75w-90 I currently am running everything motul and the LC has been running really smooth300V or Motylgear?
Awesome, thank you!For front and rear diff if open use SAE 90 since that is the actual spec for the 100 series and transfer put motylgear 75w-90 I currently am running everything motul and the LC has been running really smooth
What I'm wondering: Would the efficiency gain "stack" since there are 3 differentials, or would it just be 0.5% improvement overall?
For the test linked above, they tested individual axles (which I assume means just a single diff in the case of the HMMWV).
It would compound, not add. i.e. 1.0025 * 1.0025.Check this out:
http://gvsets.ndia-mich.org/documen...y%20Axle%20Efficiency%20Test%20Stand.pdf
H/T to the guys at bobistheoilguy.com. Very thorough test was done for the U.S. Army. The result for the HMMWV (closest to our LC's the other were heavy armored trucks) is that 75W-90 is good for about a 0.5% increase in fuel efficiency over 80W-90. 75W-140 had an advantage in heavy load low speed conditions.
What I'm wondering: Would the efficiency gain "stack" since there are 3 differentials, or would it just be 0.5% improvement overall?
For the test linked above, they tested individual axles (which I assume means just a single diff in the case of the HMMWV).
It would compound, not add. i.e. 1.0025 * 1.0025.
Check this out:
http://gvsets.ndia-mich.org/documen...y%20Axle%20Efficiency%20Test%20Stand.pdf
H/T to the guys at bobistheoilguy.com. Very thorough test was done for the U.S. Army. The result for the HMMWV (closest to our LC's the other were heavy armored trucks) is that 75W-90 is good for about a 0.5% increase in fuel efficiency over 80W-90. 75W-140 had an advantage in heavy load low speed conditions.
What I'm wondering: Would the efficiency gain "stack" since there are 3 differentials, or would it just be 0.5% improvement overall?
For the test linked above, they tested individual axles (which I assume means just a single diff in the case of the HMMWV).