Rotella T Synthetic only oil I use....5 years now!
Every report out there says its as good as any sythetic, $6 - $15 a gallon cheeper than the others and there's nothing better. Also use the Supertech filters, made by Champion, better than OEM

Get them at Wally World, they are almost everywhere, most open 24/7.

I keep a flat filter wrench and paper funnels in the left s-bag. Can change oil most anywhere any time.
nuff said!