Draining the transfer case and manual recommends Majic J or euivalant for the refill. I see both amsoil and RP are compatiable. Transfer case takes about 2.3 quarts. This is for a Nissan Titan. Thanks
I use Amsoil ATF in both the jeep's NP231 transfer cases (naturally). I can't really say that I noticed a difference between it and +4 in my application ...but when you've got nothing to improve on
I got a lot more out of changing the diff's to Severe Gear.
I am sure a lot more people use Amsoil than Royol Purple. So do you want to walk the wide road use Amsoil? If you want to be the "Maverick" use Royal purple?
Amsoil is the real deal. Although I don't hear much negative about RP, I also don't hear much positive. It may be the best there is, who knows. But with Amsoil, you know what you get.