I use Castrol Edge. I was concerned that Mobil 1 did not meet the specs on the 2019 Navigator. I called Mobil 1 in March and they said that their oil is not currently certified to the newer spec. Castrol Edge was certified.
I use only full synthetic in my vehicles. Ford uses sensing technology which varies your oil life based on the conditions you drive in. I always do my first oil change at around 1500 miles because I think it can remove metal particles form the engine manufacture. It is not too expensive and I don't mind paying for it even if it isn't necessary.
I currently have just over 3000 miles on my vehicle. I plan to use the oil life indicator to determine when the next oil change should be. However, I will probably change when 75%-80% of the oil life is used up. I always change the oil in my vehicles a little more often than the factory recommended interval.
I use only full synthetic in my vehicles. Ford uses sensing technology which varies your oil life based on the conditions you drive in. I always do my first oil change at around 1500 miles because I think it can remove metal particles form the engine manufacture. It is not too expensive and I don't mind paying for it even if it isn't necessary.
I currently have just over 3000 miles on my vehicle. I plan to use the oil life indicator to determine when the next oil change should be. However, I will probably change when 75%-80% of the oil life is used up. I always change the oil in my vehicles a little more often than the factory recommended interval.