Oil pressure while driving

[GunMonkeyINTL]

FYI last month I got an engine oil pressure low malfunction on my 2019. The ford mechanic stated that high end vehicles burn oil quicker than other when new. He said the ford techs suggested monitoring it and adding oil. They can’t do anything till the 10K mileage since that the break in period. Personally to me it makes no sense

How low was your oil when you checked it after getting the warning?

 

[Ghstfce]

How low was your oil when you checked it after getting the warning?

They said I was short 2 1/2 quarts so 2 and 1/2 bottles of oil.. they simply added more oil and sent me packing. I’ve read in other articles that the oil filetee is the issue and some other that had to do with a pump. I’m not so sure but after they added the oil it was back to normal. I’m keeping an eye on it. Checking oil monthly now. I bought my truck back in August 2019 and I got the malfunction in January and had 4K miles on it.


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[GunMonkeyINTL]

Checking oil monthly now.

That’s a good idea. Err on the side of more frequently if you think there is any chance you’ll forget.

You didn’t happen to watch either of the oil pressure gauges as this consumption developed did you?

It would be interesting to know how they reacted as it went from 6qt down to 3 1/2.


ETA: Hell, I’ve got a Fumota valve on mine. Next oil change is only 2,500 miles away. I might take a couple quarts out and drive it a mile or two and see what the gauges do, ahead of the change.

 

[Ghstfce]

That’s a good idea. Err on the side of more frequently if you think there is any chance you’ll forget.

You didn’t happen to watch either of the oil pressure gauges as this consumption developed did you?

It would be interesting to know how they reacted as it went from 6qt down to 3 1/2.


ETA: Hell, I’ve got a Fumota valve on mine. Next oil change is only 2,500 miles away. I might take a couple quarts out and drive it a mile or two and see what the gauges do, ahead of the change.

No I never bothered looking at them, it’s a brand new raptor. I didn’t think I’d had to a a new car lol


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[FordTechOne]

FYI last month I got an engine oil pressure low malfunction on my 2019. The ford mechanic stated that high end vehicles burn oil quicker than other when new. He said the ford techs suggested monitoring it and adding oil. They can’t do anything till the 10K mileage since that the break in period. Personally to me it makes no sense

Not sure what an "oil pressure low malfunction" is, but the technician is correct. All engines, especially high performance engines, will consume more oil during their first 10K miles since the engine is still breaking in. If you run it hard during that period you can easily consume enough oil before the first oil change notification to cause a low oil condition. What is your build date and mileage?

 

[FordTechOne]

I noticed today my oil pressure is between 22 and 23 psi while driving at 55 mph steady cruise. This seems low to me. Does the EB have a different type of oil pump? What’s everyone else’s oil pressure if you have the digital gauges on your trucks?

interesting enough, these types of concerns are the very reason that manufacturers stopped providing real time gauge readings in the 90's and substituted "dummy" gauges in their place. Only recently have real gauge readouts started to make a comeback. Not knocking you, because you posted on a forum asking for information. On the contrary, there are consumers that will analyze every gauge reading in their vehicle and end up at the dealership demanding repairs for their vehicle for which nothing is wrong. The dealership then bills the manufacturer under an NPF (No Problem Found) code. When the manufacturers tracks warranty spend and finds that a specific system/concern is driving cost - regardless of whether it's a design issue, defect, or normal operation - they implement changes to mitigate that cost.

These engines use a variable displacement gerator oil pump controlled by the PCM. The connector is right in the front cover, next to the crank damper. The purpose of the variable displacement system is to optimize oil pressure under all conditions. Under idle and light cruise, oil pressure is low because hydrodynamic lubrication can be maintained under these conditions without considerable pressure. This prevents oil aeration and extends oil and oil pump life. Under high load conditions, such as boost/heavy throttle, the PCM ramps up solenoid duty cycle to maintain the desired pressure. This is advantages, as older, non-variable systems can only produce pressure as a function of RPM, not load. The variable oil pump allows the PCM to ramp up pressure regardless of RPM, which is critical in an application such as the 3.5 HO that can produce and maintain max torque at a relatively low RPM.

 

[GunMonkeyINTL]

interesting enough, these types of concerns are the very reason that manufacturers stopped providing real time gauge readings in the 90's and substituted "dummy" gauges in their place. Only recently have real gauge readouts started to make a comeback. Not knocking you, because you posted on a forum asking for information. On the contrary, there are consumers that will analyze every gauge reading in their vehicle and end up at the dealership demanding repairs for their vehicle for which nothing is wrong. The dealership then bills the manufacturer under an NPF (No Problem Found) code. When the manufacturers tracks warranty spend and finds that a specific system/concern is driving cost - regardless of whether it's a design issue, defect, or normal operation - they implement changes to mitigate that cost.

These engines use a variable displacement gerator oil pump controlled by the PCM. The connector is right in the front cover, next to the crank damper. The purpose of the variable displacement system is to optimize oil pressure under all conditions. Under idle and light cruise, oil pressure is low because hydrodynamic lubrication can be maintained under these conditions without considerable pressure. This prevents oil aeration and extends oil and oil pump life. Under high load conditions, such as boost/heavy throttle, the PCM ramps up solenoid duty cycle to maintain the desired pressure. This is advantages, as older, non-variable systems can only produce pressure as a function of RPM, not load. The variable oil pump allows the PCM to ramp up pressure regardless of RPM, which is critical in an application such as the 3.5 HO that can produce and maintain max torque at a relatively low RPM.

Thank you for that detailed explanation. That makes way too much sense to have been something Ford would just tell us outright.

If the oil pump is not directly crank-driven, then, could there possibly be a way to let the battery drive the oil pump for a few minutes before/after shut-down?

I’d gladly dedicate my remote-start to running the oil pump over having the climate controls running before I get in.

 

[quikag]

That’s a good idea. Err on the side of more frequently if you think there is any chance you’ll forget.

You didn’t happen to watch either of the oil pressure gauges as this consumption developed did you?

It would be interesting to know how they reacted as it went from 6qt down to 3 1/2.


ETA: Hell, I’ve got a Fumota valve on mine. Next oil change is only 2,500 miles away. I might take a couple quarts out and drive it a mile or two and see what the gauges do, ahead of the change.

I’ll tell you what happens. I have a ‘19 and at 6200 miles on original oil, I did a 0-70mph full throttle acceleration run. Right about 70mph, I get a low oil pressure warning and car feels like it hits the brakes. The upper left “dummy” oil gauge shows no oil pressure and is red.

I pull over and restart vehicle and it clears the warnings and I’m showing normal pressure. I go to gauge view and do another identical accel run. As it’s climbing through the gears the oil pressure is gradually dropping until around 70mph at full throttle near redline oil pressure is only around 20psi. The warning pops up again, limp mode, and the stupid oil gauge shows no pressure and is red. Gauge view is showing normal oil pressure after computer won’t let me give any significant throttle. I repeat test again and same deal.

I go to dealer and they get me a nice new Lariat loaner. They call me a day later and said oil level was 2-3 quarts low. They give me a free synthetic oil change and we agree that I will monitor oil level by checking dipstick.

4500 miles on this oil change and it appears to be down less than half a quart. So, I hope that was a break-in issue and my truck will be good going forward. April 2019 build truck.

 

[Ghstfce]

Not sure what an "oil pressure low malfunction" is, but the technician is correct. All engines, especially high performance engines, will consume more oil during their first 10K miles since the engine is still breaking in. If you run it hard during that period you can easily consume enough oil before the first oil change notification to cause a low oil condition. What is your build date and mileage?

Not sure about build date but I got my raptor in mid August 2019. The mileage at the time was a couple hundred under 4K and the error happens while on the in ramp into the freeway. I was going fast but I wasn’t flooring it either lol.


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[Ghstfce]

I’ll tell you what happens. I have a ‘19 and at 6200 miles on original oil, I did a 0-70mph full throttle acceleration run. Right about 70mph, I get a low oil pressure warning and car feels like it hits the brakes. The upper left “dummy” oil gauge shows no oil pressure and is red.

I pull over and restart vehicle and it clears the warnings and I’m showing normal pressure. I go to gauge view and do another identical accel run. As it’s climbing through the gears the oil pressure is gradually dropping until around 70mph at full throttle near redline oil pressure is only around 20psi. The warning pops up again, limp mode, and the stupid oil gauge shows no pressure and is red. Gauge view is showing normal oil pressure after computer won’t let me give any significant throttle. I repeat test again and same deal.

I go to dealer and they get me a nice new Lariat loaner. They call me a day later and said oil level was 2-3 quarts low. They give me a free synthetic oil change and we agree that I will monitor oil level by checking dipstick.

4500 miles on this oil change and it appears to be down less than half a quart. So, I hope that was a break-in issue and my truck will be good going forward. April 2019 build truck.

Lol that literally happen to me as well, only I wasn’t flirting it. Checking that #dipstick monthly
BTW do you know the factory oil type they use? Is it Castrol? Or what brand ?


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