Oil?

[Eco2014]

Have a 2014 F150 Ecoboost with about 24,000 miles, and always used motorcraft full sys oil. I'm waiting to go with eather Mobil 1 or Valvoline full sys. Is it ok to switch and will it cause problems if something goes wrong and need warranty work? The dealer is getting way to costly for oil changes. Which is the best oil Mobile or Valvoline full sys?

[FX4Life]

I'd only use motorcraft. That engine could very well have problems down the road. Mine did, among plenty of others on the forums.
I'd hate to have a warranty voided simply bcz you didn't use the correct oil

That's my opinion

[BFEB]

Have a 2014 F150 Ecoboost with about 24,000 miles, and always used motorcraft full sys oil. I'm waiting to go with eather Mobil 1 or Valvoline full sys. Is it ok to switch and will it cause problems if something goes wrong and need warranty work? The dealer is getting way to costly for oil changes. Which is the best oil Mobile or Valvoline full sys? If you're not gonna use Motorcraft if go with Mobil. I wouldn't think you'd have any warranty issues as long as you use the recommended weight. Then again dealers like to get pretty sheisty now-a-days.
It really goes both ways with them. I've seen them refuse things that are definitely warranty work and seen them repair issues that were clearly owner error.
Guess you just have to catch them on a good day.