Oil change time. I did the 535 first and then the wifes 96 Toyota Landcruiser that I just picked up after her accident. Found one with 25,000 miles on it. I couldn't believe her 4.5L 6 cyl. took 8 qts of Mobile 1. I wonder where I can buy this stuff in bulk? Walmart stopped carrying the 5 qt containers of Mobile 1, 0-40wt. Not a big seller they told me.