Engine oil PENNZOIL or AMSOIL
The engine itself runs great with the 48K I put on it in the past 2.5 years with biannual oil changes (Pennzoil Ultra Platinum). Averaging 27 MPGs on 91 Octane hwy miles, 24-25 mpg in the city.
5000 miles with a quality full synthetic will serve you well for the life of your vehicle.
Maintenance, that’s what I’m focusing on rn so far ive done oil and coolant, went with amsoil and Nissan blue
I drive a 2021 RAM 1500 Classic and use only Pennzoil Ultra Platinum with the extended guard filter cartridges. I change my filter cartridge at 5,000 miles and reset my light then at around 10,000 miles, I change the oil and cartridge. There was one time I forgot to change my oil before winter and didn't feel like doing it in the cold so I ended up around 15,000 miles before changing it. The oil was still fairly clean.
I used AMSOIL signature, and do yearly oil changes.
I used Amsoil when I did mine. The squeeze bags they have make changing the fluid a lot easier and it's good oil.
Synthetic oil change is now $125 at the stealership so Ibu my own 0/50 Penzoil and a high quality filter every year, and vacuum out the Hybrid Traction battery filter myself
Biggest thing I see here is the 400 ppm increase in zinc for amsoil, which will keep the cam happy.
You're paying for the name.
Pennzoil UP was on a sale and I bought 15 quarts, my Sierra dropped a lifter within 200 miles of the OC and switch, related, no way, will I ever use Pennzoil UP again, no way.
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