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I am typically filling with 13.5 quarts just to have the level at a point on the dipstick that I can EASILY see.
Filling with 14 quarts (+) makes it hard for me to see the oil level (this is in my truck). I want to be able to detect a rising oil level (from fuel in the oil) if it ever were to happen!
That said, these engines DEFINITELY have some variability in the fill levels for some reason. It was a topic early on when the 6.0L first came out.
@Hartwig - Are you checking the level with the dipstick fully inserted? That is what Ford recommends anyway (this was another well discussed topic in the old days).
I had to order an aftermarket dipstick as my oem one crumbled. I have a feeling the 15-15.5 quarts thing is causing my oil to “disappear” going to drain and measure out 13.5 quarts then put that back in to see if that surging issue after long highway speed drives goes away. At this point it’s a new engine new fuel system new high pressure oil system.
As Mark said, it was early on there was some variation between engines noted. I, too, do a 13.5qt refill, without cranking to get the HPOP reservoir oil pumped out. That's a thing, too.
I tend to notice when I've put 14qt in, it settles to 13.5qt if I use the dipstick as the volume gauge. However, since I've switched over to the 2006.5+ yellow dipstick, I need to relearn.
I am typically filling with 13.5 quarts just to have the level at a point on the dipstick that I can EASILY see.
Filling with 14 quarts (+) makes it hard for me to see the oil level (this is in my truck). I want to be able to detect a rising oil level (from fuel in the oil) if it ever were to happen!
That said, these engines DEFINITELY have some variability in the fill levels for some reason. It was a topic early on when the 6.0L first came out.
@Hartwig - Are you checking the level with the dipstick fully inserted? That is what Ford recommends anyway (this was another well discussed topic in the old days).
Yes, fully inserted Sir.
But I'm a little bit over max. (engine sitting min. 5hours)
However, I should also notice a leak in the fuel system by a change in pressure (permanently monitored with the CTS2).
Yes, fully inserted Sir.
But I'm a little bit over max. (engine sitting min. 5hours)
However, I should also notice a leak in the fuel system by a change in pressure (permanently monitored with the CTS2).
Sorry if it seemed like a simple question, but there were debates early on and I wasn't sure what the European practices might be. In addition, Ford actually had some "seemingly" conflicting information on it.
As far as seeing it on a fuel pressure monitor, that is a good idea, but slow leaks might not be noticed.
It is good to know that 15 qts works just fine. Ford also warned about some aeration of the oil if the level were too high.
You know I appreciate your knowledge very much Mark. Please excuse me if I have expressed myself incorrectly.
I think with the 6.0s it is not a issue hether 14 or 15quats are filled.
But you give me a good idea! I will check how much oil fits in the lower oil pan, I am disassembling another 6.0 soon.
I think as long as the crankshaft doesn't hit the oil (if the oil level goes over the top of the oil pan) and the oil foams because of it, there shouldn't be any problems.
For diesel engines with DPF and the oil increase in these engines is another issue.
Both of the trucks when they were on the road would get a one quart short fill at oil change.
I found that if I did that I never had a leak. The first truck never had any leek issues as early
in life, it got the bed plate resealed under warranty. The later truck had not been resealed
and if I put in a full refill, it would have that hanging drop.
Unfortunately, what I never did before putting the pan on was to take an image of the dipstick to show it's position.
I will measure this next week Jack. I "have" to go on vacation with the family over the holidays.
Also I will measure the height of the oil pick up tube in the sump.
Back in 2010 when the dealer did a bedplate reseal, they managed to overfill the engine, a lot. I drove it around 80 miles before ever checking the dipstick, I freaked out when I did check it, and I started pulling oil out a quart at a time. At 5 quarts out the level finally was mid-range on the stick!
I can't remember if I asked here if that would have caused damage, but I did call the dealer and was assured it was not a problem. Good news, is there were no leaks with that much extra oil in there, so the bedplate re-seal worked... I go with 14 qts on my OCs - on mine it sits mid stick, so I had 19 qts in there for 80 miles...
Back in 2010 when the dealer did a bedplate reseal, they managed to overfill the engine, a lot. I drove it around 80 miles before ever checking the dipstick, I freaked out when I did check it, and I started pulling oil out a quart at a time. At 5 quarts out the level finally was mid-range on the stick!
I can't remember if I asked here if that would have caused damage, but I did call the dealer and was assured it was not a problem. Good news, is there were no leaks with that much extra oil in there, so the bedplate re-seal worked... I go with 14 qts on my OCs - on mine it sits mid stick, so I had 19 qts in there for 80 miles...
Now Mark won't want my truck...
I think I might have a little panic on that also.
I think that one thing you might notice is a little drag on the engine,
with the oil being foamed up by the crank digging into the oil that is
over the windage tray. I don't think that the air in the oil would
make it down to the oil pickup.
Not sure on this one, maybe Jack or Mark will chime in on entraining air.
I think I might have a little panic on that also.
I think that one thing you might notice is a little drag on the engine,
with the oil being foamed up by the crank digging into the oil that is
over the windage tray. I don't think that the air in the oil would
make it down to the oil pickup.
Not sure on this one, maybe Jack or Mark will chime in on entraining air.
Thanks Sean - it rean great and I hammered on it a bit - wasn't monitoring back then, so maybe I would have seen something. Maybe Hartwig when he takes his next engine apart can do a volume check of the pan itself?
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