Grumpy I just earned the idiot of the year award I changed oil on my 2015 F150 3.5 ecoboost engine after changing everything I noticed I put a 5 quart jug of 5w-20 & 1 quart of 5w-30 the engine calls for 5w-30 can I at least run it for a couple miles then do a quick change back to 5w-30 the oil is Mobil 1 full synthetic so this was about a 60 dollar brain dead move