the manual only requires 0-40 but recommends pennzoil due to contractual obligation due to fiat/pennzoil consortium. Before fiat the recommended oil was Mobil one.
Interesting event at local dealer they said no more requirement for Pennzoil Ultra 0W-40 they suggested getting any commercial available 0W-40 as long as it's 0W-40 it meets requirements came from Corporate. Interesting I had one more free Oil Change due they used pennzoil 0W-40 Euro said it...
But the wizards at FCA don't drain the oil put in at the cummins plant and refill with rotella the only reason FCA lists Shell/Pennzoil is a marketing agreement.
My last 2 trucks were FERDS 2017 F250 Buy Back Electrical gremlins couldn't fix after 13 months. Came out great. Second one 2018 SD 350 Diesel Rattled like a 40 YO truck when icy in the Winter Regens every 4 days even after 3 hour HWY trips you could see the fuel gauge drop. Even had a COP stop...
I caught a 2 foot post with my F250 Alumibed scraped the running board and totally buckled side of bed like Aluminum foil 7400 dollars later was fixed fine. Required bed removal and even after having to go to special facility bad rivets in corner of Bed. Driving a ram now. Also my second...
https://www.valvoline.com/our-products/motor-oil/advanced-full-synthetic-motor-oil
SDS and PI PDFs show approval MS-12633 the 0-40 is affordable and easier to find
Valvoline meet the SPEC Just make sure to get the Advanced 0W-40 and not Euro.
Mine averages 14.4 for last 1000 miles. On the HWY much better I have one drive rural that I get 18 about 70 mile trip flat as a pancake drive about 57 MPH. But overall not bad IMHO
https://www.valvoline.com/our-products/motor-oil/advanced-full-synthetic-motor-oil
SDS and PI PDFs show approval MS-12633 the 0-40 is affordable and easier to find
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