2006 4.6 3 valve engine. First oil change. Ford says 5W 20. I am thinking synthetic...or am I wasting my money??

 

dino oil till you hit $3-4k miles ..then synthetic all the way and fords new clearances are tight so stick with the 5W20.. napa synthetic is actually repackaged valvoline FYI

 

Pat the real question is, What Would Jeasus Do??????

 

Hmmmmm I wouldn't do synthetic. I have heard a synthetic can hinder break in.

 

run synthetic after 3k mi, then switch to a mobil 1 5w20 full synthetic, this what we are told to do to the C6 Z06, b/c they come with free oil changes

 

cool..........I'll go conventional.and then swap to synthetic......thx

 

you dont think ford would void the warrenty if it had a oil that wasnt suggested by them? i know it sounds stupid but this is ford we are talking about.

 

I could care less about the warranty

 

i would at least use the manufacturers reccomend oil, not a lesser item, there is a reason ford wants you to run semi-synthetic. fyi walmart has a gallon just of mobil 1 for about 20 bucks, my 4.6 in the explorer uses 6 quarts, so check your owners manual.