So I received the first couple OCI free from the dealer but I don't really want to pay them $50+ for the privilege of waiting in line and hoping they do a proper oil change from here out. But I also want to minimize warranty liability. The F150 2.7L ecoboost specifies 5w-30 to Ford spec WSS-M2C946-B1
I'm seeing mostly synthetic aftermarket oils that meet this spec and haven't noticed it on conventional such as Pennzoil or QSAD. Being a GTDI engine I want to keep the OCI to about 5000 miles which are typically lightly loaded with maybe occasional spirited driving. Suggestions on the most economic 5w-30 which specifically meets the Ford spec? Many of the conventionals meet the Ford WSS-M2C946-A spec, though. I wonder what the difference is.
Recommended motor oil (U.S.): WSS-M2C946-B1 MotorcraftÂ® SAE 5W-30 Synthetic Blend Motor Oil XO-5W30-QSP