F150 owners. What oil you running?

herman maire · 08-19-2009, 03:06 PM

I picked up a 2005 f150 crew cab not to long ago, the 5W20 that I see on the oil filler cap seems like a poor choice. Wouldn't 0w40 or 5W40 be better?

Also, do you guys have any light tapping from your engine at idle? Truck runs great and strong but that tapping is a little annoying.

Thanks in advance.

rsa · 08-19-2009, 03:15 PM

I have the same truck. I have run 5W20 royal purple with no problems. I change every 5000 miles. I am in Texas and it is hot as hell here. No tapping at all. The thicker oil would only mask a problem that you may have with the engine.

herman maire · 08-19-2009, 03:25 PM

Thanks for the reply. Do these motors have any known problems? I have the 5.4L. I bought the truck on a busy/ noisy city street where it made it harder to hear the engine, its really a faint tapping like maybe a lifter.

Why such a thin oil? I'm thinking maybe for fuel economy.

gr8fl4porsche · gr8fl4porsche's Garage

I have ran 5w20 in my Ford 4.6 for 150,000 miles - no engine issues.

Obama just gave me $4500 for my last F150. It doesn't need any more oil.

vash · vash's Garage

small exhaust leak?

fastfredracing · 08-19-2009, 04:50 PM

Quote:

Originally Posted by vash

small exhaust leak?

This may be correct, I frequently hear small leaks at the exhaust manifold on these trucks, sounds like a lifter noise. A lot of the times, you can only hear it when it is cold, as the motor warms up, the noise quiets.
These motors seem to be real durable. I have seen a couple with loose chains, and chain guides, and have done couple of heads to remedy stripped spark plug holes, but they seem to be good for the long haul

Slownomore · 08-19-2009, 04:51 PM

My father in law has the same truck. 5w-40 for 89k and never a problem. The tick is what is said to be a normal engine noise. The only issue with these I have ever seen is it took me 2 days to replace the plugs. about 30 minutes was spent breaking every plug removing them then waiting a day for the "special tool" over nighted from Matco then about 2 hours to remove the broken bits and install them. There was a throttle body issue that Ford wouldnt cover under the extended warranty. They said it needed to be replaced. I removed it and cleaned it 5,000 miles ago and knock on wood its never gone back into limp mode where it did that every 10 miles or so. The plug issue is common with the 5.4l's and a few others. The tool however makes life a breeze removing them after they break. Hope this helps.