Hi all,
I have some front end grinding that's going on between where my front differential is and the left wheel. Seems like grinding + some sticking (wheel bearings replaced not long ago, no change).
I change the differential oil about 2 y ago ( at a shop) and about 2 mo ago again (myself). Didn't see any particles in the old oil 2 mo ago.
Both times it was changed to RedLine 75w90. The grinding was there before the last diff fluid change, but since the last change it seems even worse.
Not sure why. I wanted to change again and this time go with: https://www.fcpeuro.com/products/gear-oil-liqui-moly-99991754600, as well as adding a friction modifier.
I read that adding LSD additive to a non-LSD additive should do anything bad. But, since I don't understand the mechanics in differentials too well, I was wondering if something like the Liqui Moly MoS2 additive https://www.amazon.com/gp/product/B00CPL8UPY/ref=ox_sc_act_title_2?smid=A3NWIEOAD4STBF&psc=1 would be better (which apparently is bad for LSDs), or go with the well proven Motorcraft additive (https://www.amazon.com/gp/product/B...&pf_rd_p=edaba0ee-c2fe-4124-9f5d-b31d6b1bfbee)
Thanks for your input!
-fana
I have some front end grinding that's going on between where my front differential is and the left wheel. Seems like grinding + some sticking (wheel bearings replaced not long ago, no change).
I change the differential oil about 2 y ago ( at a shop) and about 2 mo ago again (myself). Didn't see any particles in the old oil 2 mo ago.
Both times it was changed to RedLine 75w90. The grinding was there before the last diff fluid change, but since the last change it seems even worse.
Not sure why. I wanted to change again and this time go with: https://www.fcpeuro.com/products/gear-oil-liqui-moly-99991754600, as well as adding a friction modifier.
I read that adding LSD additive to a non-LSD additive should do anything bad. But, since I don't understand the mechanics in differentials too well, I was wondering if something like the Liqui Moly MoS2 additive https://www.amazon.com/gp/product/B00CPL8UPY/ref=ox_sc_act_title_2?smid=A3NWIEOAD4STBF&psc=1 would be better (which apparently is bad for LSDs), or go with the well proven Motorcraft additive (https://www.amazon.com/gp/product/B...&pf_rd_p=edaba0ee-c2fe-4124-9f5d-b31d6b1bfbee)
Thanks for your input!
-fana