Nearing time for my first oil change and began a search for the correct oil filter. I have a 2015 with the 3.5 ecoboost. I'm finding confusing results on my search. I'm looking at the Motocraft brand but coming up with both FL500s and FL820s. Any help me out by telling me which one it the correct filter. Thanks.

 

seems they should be interchangeable, but some people over on Bob is the Oil Guy have done research and per the specs the 820 is supposed to flow better and has higher bypass pressure which from what I can tell means it's better. It's also larger, so adds a marginal amount of capacity to your truck.

 

500s is what the manual calls for.

just stick with the 500s