transfer case oil

I have 2 quarts of Royal Purple Synchromax part #01512 which is used in the Transfer Case for sale. The bottles are new and unopened. I would like to sell both quarts to one buyer. The transfer case requires 1.05 quarts. I am asking $28 for the pair + shipping. Local pickup is available in the...

Hi all. I hope you guys take it easy on me. I did the search and really couldn't find much on what I want to know, in a reasonable amount of time. I am taking ol blue in (2007) for a tune up. I bought her 3 or so years ago, and haven't done much other than oil changes and tranny oil change...