I realize this post may be beating a dead horse but search didn't quite turn up the answer for my question. Once the warmer weather arrives here in the north I'm going to be changing out all the fluids. Now while I use Mopar fluids for the transmission, transfer case, radiator and power steering, I like to use Amsoil for everything else as a friend of mine is a dealer. I haven't yet done work on my WK since it has been frigid out, but my question is, for the QDII diffs is it best to use the Amsoil 75W-140 gear oil with the 4 ounces of Amsoil limited slip additive, or use the Mopar limited slip additive for the ELSDs? I tend to play it safe and use Mopar but I'll be getting a really good deal on the Amsoil products that I've always loved, even more so than Royal Purple. Just want to hear what people think due to their own experience.
2001 WJ Laredo 4.0L - Sold!
2009 WK Limited 5.7L HEMI