Doesn't our engine have some kind of "active oil pressure solenoid/valve"?This makes no sense. Oil pressure is directly related to engine rpm since the pump is driven off the engine. Yes - it is higher during cold start procedure vs. warm start but that lasts a minute or so and only matters at idle.
good one!Need at least a minute for the heated seat to warm up before I cheek the seat.
People should be reading everything in the section headed "ECONOMICAL DRIVING", including that heading. Under that section, two items are mentioned that are related to startup and warmup.I read the manual and it says NOT to warm.up the vehicle. Just start driving. Why would Ford Engineers advise this?
It doesn't say "don't idle at all", or define when idling is either acceptable or not.• Avoid long idle periods.
• Do not warm up your vehicle on cold mornings.
What you are describing is the syncronizer doing its job. The synchronizer mechanically matches the rotational speed of the gear connected to the engine output shaft with the gear connected to the drive shaft going to the rear wheels. If you turn off the HVAC and infotainment systems and pay close attention you can hear the syncronizers work every time you shift, especially when the transmission oil is cold, and if you move the shift lever slowly between gears. Here's a good tutorial on how the synchronizers work:I may hear a zipping whiney sound as the shifter passes through the gates. I only have a mile commute so I only go about 45mph.
It does give a parameter of when not to idle, which is a cold morning. That is relative though because the factor is not definitive. With that said, the converse is not to idle on anything but a cold morning.People should be reading everything in the section headed "ECONOMICAL DRIVING", including that heading. Under that section, two items are mentioned that are related to startup and warmup.
It doesn't say "don't idle at all", or define when idling is either acceptable or not.
Nor does it address situations that exist in real life where a little idling/warmup is specifically indicated (such as frost or ice on the outside of the windshield or fogging on the inside).
It's only concerned with maximizing fuel economy. Chances are, it's the exact same boilerplate text that shows up in the owner manuals for every Ford vehicle sold, most of which don't exactly encourage spirited driving at any time.
Norm
Keep in mind that it only says that in the context of maximizing fuel economy. No other reason.It does give a parameter of when not to idle, which is a cold morning.
I have a three mile drive to work. It gives me an excuse to leave early and do a larger loop until engine completely warms up. General rule of thumb is about 15-20 minutes depending on driving. IE Stop and Go or continuous.Not trying to start an argument but driving only a mile to work is pretty hard on the engine.
Mechanical pump. And the oil pressure gauge in your ST is faked by the ECU, it does not have a proper gauge sender.Regarding oil pressure, don't these engines use an electric oil pump? Watching the gauge the oil pressure really ramps up the more throttle you give it, even in top gear when the RPMs barely change. Then it has a noticeable delay returning to normal when letting off the throttle as if it's anticipating more spirited driving. It doesn't behave at all like any other oil pressure gauge I've watched such as my recent 2017 Focus ST. The oil pressure followed the engine RPM exactly. Anyone know if the oil pump is still mechanical or electric in the mustang?