What oil are you running in the F150?My now gone 2005 buick lasabre drank or burned one quart before the old 3000 mile oci,,,,but my existing 2010 F150 never loses a drop and the oil always looks clean,,never gets black,,,how does that happen, it is amazing..
I remember back in the day when synthetic oil was actually full synthetic (before the mobile/Castrol dispute) I ran mobile 1 in my 97 4Runner and it seemed to never get dirty. I still run mobile 1 and notice it gets dark much faster than back then. With the 4 runner I would go 6/7000 miles cause it just looked so good. Now I stick to 3,000 and at that point it’s already starting to darken. Still not black but would be if I went to 5,000. It’s like they use less of the group 4/5 ingredients and it doesn’t hold up as long. I always liked synthetic because it seems to stay cleaner longer.