Thanks for your elaboration. The MaxLife (which is apparently a high mileage oil?) will be my choice, and if it is exceedingly expensive - it sounds like any quality 5W-30 will do the trick.
Thanks all. It sounds like there is largely consensus, with the only lingering question being high mileage or no high mileage oil. A lot of you mentioned the Valvoline Max Life, so I am tempted to go with that. Will anyone say "Don't do it!"? Otherwise, I guess I will proceed. Thanks for the help!
Great question! I have been going to the "quick oil change" places and letting them work their magic. So - I have no idea really what has been happening, but rather have just trusted them to do the right thing. A friend told me that I am an idiot, and that oil is important. I like research, so...
So standard 5W-30 oils are basically the same? I can just buy on price? That seems weird. I see that Thax recommended some of those higher mileage products - what is the difference in those? What about the filters - pay more / get more?
I'd like to stay with changing my oil every 5000 or so.
New guy here - thanks for your help. My 170K mile 1998 Chevy Suburban 5.7 liter runs great - no problems. My usage is 20 mile minimum highway trips - some trips a lot longer. Not too much stop and go city driving. I live in Montana - twenty below to one hundred above.
What oil and filter...