just bought my truck(06 5.4) 2 weeks ago. didnt come with manual. was wondering what oil should i use and if it would be better to use synthetic or regular oil?

 

calls for motorcraft synthetic blend 5w20. it is a good oil at a good price. make sure and use a motorcraft filter fl820s. do not use regular oil. use blend or full synthetic.

 

x2

 

thanks for the info guys

 

I have been using the Ford oil and filter every 5k since new. Most WalMarts carries both

105k and no cam phaser problems.

 

Would yous recommend the same for my 06 4.6? Also would I also use the same motorcraft filter fl820?

 

I'm not sure what filter the 4.6 takes, it's been a while since I've bought one (too damned cold to do the oil changes myself outside, and the truck doesn't fit in the garage!).

The oil, however, is the same.

 

Your 4.6 takes 6 quarts of 5w20 synthetic blend and the fl820s filter.

 

Great! Thank you!!

 

Just be aware that there are 2 different filters on the 4.6. Best thing to do is take the numbers off of the one that's on there.

The 4.6L in the 04-05s had 2 different blocks, not sure whether that continued later in the run or not.