2010 F-150 5.4L 3v V8, ~42,000 miles on truck, 5,000 mile OCI
Out: Unknown Dealer Oil, Motorcraft Fl-820s Filter
In: 5 Quarts Castrol Magnatec 5w-20 and 2 Quarts Pennzoil Platinum 5w-20, NAPA Gold 1372
On most vehicles I run a 5,000 mile conventional oil OCI, but with this truck I believe Ford recommends a 5,000 mile OCI when using a synthetic oil. I usually do 7,500 miles with a synthetic, but I will stick to what Ford recommends because the 5.4L 3v are known for engine issues. If this were my own truck I would use 5w-30.