Hello, new F350 6.7 owner here and its my first Diesel. Who has the best fuel? I'm out west so we have ARCO, Chevron, Shell etc. and of course Costco. Is the extra .40 per gallon worth it at Chevron and Shell, vs ARCO? Costco is the least expensive and I have heard they have premium Diesel but curious what you all use to make sure that motor lasts a long time.

Thanks!

Michael
2022 F350 CC SB 6.7

 

If you Google, diesel fuel, and Cetain number , there is a wealth of info that should provide quite a bit of info for you.