Name: Rotella T6
Brand: Shell
Viscosity: 5w-40
Type: Full Synthetic
Grade: A

I used this oil to rid myself of a persistent po0012 code. VVT actuator stuck open. Ive been using it for 2 years now. I change the oil once a year (under 10k). Oil looks good enough where my mechanic friend has me save it for his pickup truck when I'm done. I usually use K&N filters sometimes STP.
I went from 10-30 dino oil and was unnecessary afraid of leaks when I changed as I have none. Used extensively in South Florida heat.