I often change my own oil on my vehicles. But Ford lures you in with offers. So about 2 years ago they changed oil and it came back showing overfull on the stick. They said they put in 7 qts. I took it back and had them drain out a quart because owners guide said don't overfill as it will do damage to engine. They apologized and gave me a free detail.
Well they did it again today after telling them not to overfill. They said that they looked it up on line under Motor/All Data Online with my vehicle information. The information came up as 4.6L and 5.4L = 6 qts. and on the 2nd line it says 5.4L (4V) Engine = 7 qts.
So what is 5.4L (4V) mean? I don't think I have this engine because the dip stick shows about a quart overfull.
Owners manual says 6 qt. w/filter.

 

You are correct. ALL expedition engines in 2004 take 6 quarts with a filter change.

However, ALL navigator engines (4-Valve) in 2004 take 7 quarts with a filter change.

I guess they're ***/U/MEing that both models have identical specs.

 

Thanks Alloro.
Venting:
I took my Expedition back to the Ford dealer after calling them on the phone. The head Manager said that it doesn't hurt to overfill the oil capacity in the pan. But my question was then why does the owners manuel say do not over fill as it may cause engine damage. The dip stick also says "do not overfill". Anyway we took it back in and waited for it again and they threw in a car wash. But they said that they drained all the oil out and refilled it, and it was correct.
Very discouraging as even a high school auto shop student knows how to look up oil capacities and get this right. And this is the Ford Dealership Quick lane that does this all day long.
So beware. He said they never get complaints about this. I told him because when you bring it in to a Ford place that does this all day long you trust them to get it right and have no reason to doubt this simple procedure. And that no one checks something that simple. But I always check and look at what happened these last 3 times. Wow. Beware!
And we told him what 4 V means. As they didn't know. Now thanks to you they should know and get it right. Easy to remember, 4 V means 4 valves per cylinder. Simple, how can a Ford mechanic forget that? And does my Expedition look like a high performance vehicle, or a Lincoln Navigator that may need an extra quart of oil?
Thanks again for you info.

 

The reason all manufacurers say not to overfill is that at high rpm the pressures inside of an engine, known as windage, can cause oil leaks and the rupturing an engine's seals. "Umm...that's baad", says Mr. Macky.
That "Head Service Manager" needs to get a job at a quickie oil change place like Grease Monkey. Or go back to the school that certified him for a refresher course in the care and feeding of automotive engines.Him><you

 

True as that is, the more serious problem is that the counterweights on the crankshaft dip into the oil and work it up into a foamy froth. This means the oil is highly embedded with air, thus reducing it's ability to lubricate and cool engine parts. The end result is at the least premature engine wear, if not engine failure.

 

That's correct alloro. That too is called windage.

 

I so want to challenge that definition based on what I wrote, but I think I'll let it pass for the sake of camaraderie.

 

That's cool It's a good thing Greenie isn't here, he loves to challenge eveything. I actually kind of miss him and his confrontational attitude, but not too much!

 

Did they put Greenie in time out?

 

You haven't noticed? It's been over a year now.

 

I hadn't. It only became obvious to me when I noticed a few of his posts in an older thread. Then the light bulb turned on.

 

I think alloro commented that this time out was the one where he probably decided to go elsewhere and not come back. I do kinda miss his 16# sledge hammer way of disagreeing with someone's post. He really believed in "Shock and Awe".

 

He was colorful without a doubt.

 

You sound "Green" with envy!