Truck22

If you have no rattle on decel or acel, consider yourself lucky. Mine has been going through oil almost as fast as gas lol. I have no doubt after the oil consumption test, I'll be getting the long block replaced.

r1mcdonald

ct chk your owners manual and oil cap 3.5l eb should use 5-30 not 5-20

cthusker

Thanks... misspoke... However changing to 10-30 has almost eliminated the start up noise when cold.....

TriSum

Can you message me about your "vibration" issues. Mine has been at the dealer for a month trying to figure out my vibration.
Thanks!

Flattusmaximus

In the first photo your oil level was way to high to begin with.

Middle of the hash marks is full and the top hole is max, your well above both.

with that being said the middle hash marks for me down below the bottom dot is usually over a quart.

Truck22

The service dept at the dealership filled it to there when I went in to have them start the oil consumption test.

Truck22

Who has actually had an engine replacement because of excessive oil consumption?

Threeper88

I wanna say I’ve seen 3 or 4 guys on here in the last week.

Dry Lakes Racer

The TSB says 1 quart in 3000 miles...good enough for me. If mine continues I'm lookin at a replacement engine and the Service Managers says no sweat..I'm in the Ford authorized test right now

KEVININCHICAGO

for what it is worth, on my 2018 5.0
0 to 1500 miles -- did not check oil
1500 to 4500 miles on full synthetic Ford 5-30 used 2 quarts
4500 to 10,000 miles used 1 quart barely.Ford 5-30 full synthetic.

I for one think it is a combination of the plasma liners and 5-20 oil and not breaking in well.
I had nothing to lose so I ran the truck as hard as I could starting around 5000 miles to try to increase the cylinder pressure to seat the rings hard.

Oil use has dramatically decreased.
Long hard highway runs at 80+ mph
Hard off the line and on ramps wide open.
Pulling trailers loaded at highway speeds in hills.

I have no problems now.
All run using premium fuel just to be safe.