Since my Coyote Mustang takes 10 quarts and I'm anal about frequent OCI's, I want to stick to 5 quart jugs that I can get in the $25 range at Walmart locally. My car calls for 5W30 but want to up to a 40 weight for a bit better protection during hard driving with similar cold-start protection since it will still be thin to flow well.
I know at one point both M1 FS 0W40 and Edge 0W40 held the same certifications but they have changed since there have been reformulations but I don't know which oil got "cheapened" more. The Coyote is direct injected and not sure if it prefers a certain additive pack among the oils. The factory break-in oil and the Liquimoly Ceratec additive people use to quiet the famous tick has high moly and boron so an oil that's on the higher end of the spectrum may be ideal. I live in Michigan so it gets pretty chilly in the winter so I don't know if I should even consider 5W40 - I think 0W40 gives the best of both worlds.
I know at one point both M1 FS 0W40 and Edge 0W40 held the same certifications but they have changed since there have been reformulations but I don't know which oil got "cheapened" more. The Coyote is direct injected and not sure if it prefers a certain additive pack among the oils. The factory break-in oil and the Liquimoly Ceratec additive people use to quiet the famous tick has high moly and boron so an oil that's on the higher end of the spectrum may be ideal. I live in Michigan so it gets pretty chilly in the winter so I don't know if I should even consider 5W40 - I think 0W40 gives the best of both worlds.