Engine oil pressure?

[Kenbike]

Have a new 2025 Ranger Raptor with 1000 miles. The oil pressure gauge indicates around 25% if low was zero and H was 100% When driving at 2200 rpm it runs in the low 30's. When near full pedal it runs 55%.
For sure it never goes into L but wondered are others seeing similar readings.

Still on break-in in oil and level is full.

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[bigb]

I can't answer your question at the moment, but by tonight I'll have more info. My truck is new as well with 150 miles on it. Today I am making a 250 mile trip with a scangauge3 connected, I plan to monitor that along with the factory gauges to see if I can establish some correlations and averages.
As I mentioned in my SG3 thread last night I suspect the oil gauge may just be an idiot light and the movement you see may just be for show, I don't know that for sure but I'll know more tonight.

 

[Roverhound]

You can configure your view to display oil pressure in psi.

 

[pablo94sc]

Standard oil pressure is typically between 30-50psi, at temp, depending on throttle position. And this is a Raptor. The oil pressure is in real time. Try reading the owners manual for further info.

 

[bigb]

You can configure your view to display oil pressure in psi.

Only on the Raptor?

 

[Roverhound]

Only on the Raptor?

I don't know. Do you have My View on your display?

 

[bigb]

I don't know. Do you have My View on your display?

I do but I don't recall having an option to configure the gauges, I'll go look in a bit.

 

[Jason B]

I can display oil pressure, trans temp, and boost on my XLT, through the off-road menu - vehicle gauges.
Your oil pressure is variable and controlled by ECU. It's how it varies cam timing thru the cam phasers.

 

[bigb]

Just took a look, on the 8" screen the gauge does say PSI, zero at the bottom and 100 at the top but no numbers in between, it's just a bar graph. Looks like there will probably be differences anyway since the OP has a Raptor which I didn't really pay attention to in the first place. I did just start the engine cold at an ambient of 65F and the SG3 reported 44 PSI and the bar graph looked to be at approx that same percent.

 

[FreezingFlatlander]

It freaked me out when I saw the oil pressure fluctuating and showing low oil pressure at times on my 2025 2.3 but then saw that these engines have variable flow oil pumps. The variable flow is designed to reduce the power needed to run the oil pump at times when the higher oil pressure is not needed. Please correct me if I am wrong. It would be interesting to know what controls the oil flow and just how this system works.

 

[bigb]

So after the trip I am happy to report that the bar gauges on the ranger do seem to be real, the oil pressure is the only one that it was hard to notice fluctuation but I think it did fluctuate. Scangauge showed pressure anywhere from 30 to 60 PSI and it would jump around a lot and even drop to 30 sometimes at 75 MPH just like @Jason B and @FreezingFlatlander mentioned.

The oil temp stayed right about even with the bottom of the little oil can most of the time when the cyl head and coolant were both around 190 which they were for most of the trip. When we first left in the morning the cyl head and the coolant went to 208-210 but when we started using the AC it dropped to 190-195 as others have noticed. I guess this is because the shutters open fully when the AC is on?

The transmission lagged a bit behind the coolant by about 6-10 degrees when the coolant was around 190, when the coolant was near 210 the transmission ran close to 200.

First tank was about 150 miles city and 100 miles highway at varying speeds for engine break in with MPG hand calculated at 16.03.

 

[Lion77]

The newer engines all have variable geometry oil pumps that allow changes in pressure based on load. At WOT, my Raptor is around 55~65 psi (depending on oil temp and RPM), but on the highway, typically 30's ~ 40's. Idle, 21.8 psi (unless it's very hot, like 240F oil temp, it will drop a bit to 19ish).

The variable geometry pumps can reduce pressure during lighter load conditions to allow better fuel economy (reduction in pumping losses) without causing issues with lubrication. You don't need 60 ~ 65 psi all the time. They also can lower pressure on cold oil until it warms up as the viscosity is far higher.

Same with the electronically controlled thermostats. They aren't purely mechanical, so they can close the thermostat even with hot coolant to allow the oil to warm up some for-fuel economy and emissions at lighter loads.

Driving on the highway, sometimes you'll see oil slowly climb up to 220F range then slowly go back down even though you're not under much load. Yet when I tow something, it never does that (higher loads). Higher combustion temps = cleaner burn = lower emissions.

Why waste fuel when you don't need to? That is one thing that's nice about modern high-performance engines, unlike the old days where performance = piss poor fuel economy 100% of the time, in modern engines performance = piss poor fuel economy ONLY when you use the power.

Think about it, how many 455 HP V8's from the 60's, 70's, 80's and even 90's (and those would only be hod-rod-modded engines there weren't really any domestic stock cars that made that kinda power even from V8's), moving a 5,400 lb mass at 78 mph on the highway, could get 21 mpg? NONE that I know of!

A stock RR runs 1/4 in 14.1 seconds…a stock 1990 Jeep Wagoneer with a 5.9L V8 runs 0-60 in 13.3 seconds and gets only around 14 mpg. The Raptor is almost as fast on the 1/4 mile as that Wagoneer was 0-60 lol. Old tech, it was decent in it's day, but it's day has long gone!

Tested: 1990 Luxury Off-Road SUV Comparison

Mid 90's the V6's began to replace a lot of older V8's (and the V8's became more of just a "truck or full sized car engine"), the V6's from Toyota and Jeep (inline 6's) made close to 200 HP and achieved high teens in fuel economy, but even a stock 3.0L TT more than doubles that power with a far broader power band (far more area under the curve, so its more than just peak numbers), and does all that with same or better fuel economy and certainly far lower emissions. Color me impressed!

 

[Lion77]

Variable Geometry Oil Pump:

And then we have the MAP Thermostat - works like a conventional thermostat, but has a heating element that can be used to open and close the thermostat more independently of the actual coolant temp, so you don't get temperature surges in the block from coolant flowing more with RPM:

Electronically Controlled Thermostats: A New Take On Wax And Brass – UnderhoodService

It's actually a clever design and just uses a heating coil instead of only the coolant heating the wax filled pressure vessel (which is what expands and contracts to open and close the valve). Not much to it, but allows a lot more ideal engine operation than purely mechanical designs.

Although I'm not 100% sure if Ford uses electronic thermostats, I know for sure my Mazda's do. I would imagine most modern Ford Ecoboost do with as fickle as they are about CAFE standards.

 

[MasterCylinder]

Have a new 2025 Ranger Raptor with 1000 miles. The oil pressure gauge indicates around 25% if low was zero and H was 100% When driving at 2200 rpm it runs in the low 30's. When near full pedal it runs 55%.
For sure it never goes into L but wondered are others seeing similar readings.

Still on break-in in oil and level is full.

Ford no longer uses a break in oil per say its usually the semi synthetic. Right out of the service manual.
The 2.3l, 2.7l and 3.0l Eco all use a Variable Displacement Oil Pump. Controlled by an electronic selonoid proportion valve.
2.3l at 121.9-175.9F, 1500rpm, 15.2-37psi
2.7l at 121.9-175.9F, 1500rpm, 16-24.7psi
3.0l at 121.9-175.9F, 1500rpm, 16-24.7psi
Be aware that is with Fords recommended oils and viscosity. My 2.3 usually when reading with a computer always reads higher than specs in manual, lowest Ive seen is 27psi.

 

[Buellsox]

This is super handy info to witness. This is what I leave it on, on my dash readout. This is my readout at idle. Gives you realtime readouts & fluctuations on the fly. Here’s how you get to it. All through the steering wheel.
Hope this helps.

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