If I wasn't so oriented on trying new oils "just because," I'd probably have stuck with Havoline. Yah, I know everyone says it's probably best to find an oil you like and stick with it, but in my mind, I'd say that's more for if you have a new car that you're wanting to last for a long time. I don't put enough miles on my truck for that kind of thinking. When I got my truck it had about ~98k miles on it. That was probably, oh I'd say about 4 years ago. In that time I've managed to put only 20k miles more on it. With an average of 5k miles per year, I expect that something else will fail before the engine. Especially since I know some people with over 350k miles on their Triton engines! So, I think my game of "trying new oils each time I change oil" really doesn't make a difference in my case. (For the record, I've tried PYB, Castrol, Havoline, and now Kendall - all have been successful in my book.)