Is 140,000 miles to much?
#11
Senior Member
My 06 fx4 is at 193,000 with no problems except for a leaking exhaust manifold. With proper maintenance and ignoring the 5w20 "water" Ford recommends, the 5.4 is a very reliable engine very capable of 300k +.
#12
What do you use instead.? didn't mean to hijack in anyway..thanks
#13
Senior Member
#14
my 5.4s got 225k on it. All put on by me and my dad but still.
#15