When I bought my car new, it was 1,000 miles and I changed my oil with Motorcraft 5W20 and FL80S filter.
Repeat at 2,000 miles and at 6,000 miles.
At 9,000 miles I switched to using Mobil1 5W30 and kept using the Motorcraft FL820S.
Car now has almost 52,000 miles on her, the last 6,500...