drolds1

I've certainly had my share of those, and they're coming more frequently these days.😕

EFI-equipped engines should not be running on (dieseling) after shutoff. Fuel and ignition sources are shut off. It's not a carbureted engine in this respect. What is possible is that at 105K, there are carbon deposits in the head and one or more leaky injectors is allowing fuel to drip into the combustion chamber where a carbon hot-spot is igniting it. So, it may very well be worth your while to investigate the injectors and run the Techron through your engine. These factors could also account for the rough running and hard starting. Since they Hybrid ICE is not a turbocharged engine, there's no danger if damaging a TC. Note that a FI cleaning is not going to cure a leaking injector if that, in fact is your issue.

Welcome, Bob.

It's the ambient light sensor for the autolamp feature.

Welcome, Greg! Yes. Great people here with great info.

Congratulations on the addition to your family.

Yes. It has been asked before. Found by using keywords "spare tire" in the 'Search' box above. https://lincolnmkzforum.com/topic/3935-spare-tire-in-a-mkz-hybrid/

Bbf2530 is right on the money. In driving 3 miles to work, depending on traffic and weather, the car may never reach full operating temperature and is operating in "open loop" status for longer than necessary for optimum fuel mileage. In addition, it needs to get at least 2000 break-in miles accumulated before even bothering to calculate MPGs. The owner's guide is clear on this: Moreover, if this is going to be the way the car is used, it's never going to break in properly. It has to be driven at varying speeds to get the piston rings to seat properly. This will ensure that there is minimal oil consumption in the future and that all the moving parts in the engine "mate" properly with each other. Again, the OG: If this is going to be the primary way the car is going to be used, it sounds like a Hybrid or even a BEV would have been a more appropriate choice for your mom.

You'll need to be doubly careful when parking in lots where there are concrete stops or curbs. It's already too easy to scrape the bottom of the bumper cover if you get too close. IMO, a front camera should have been made available on this car. The proximity sensors don't alert you to anything that low.

Welcome to the forums. I'd double-check for fitment issues before going with that wheel/tire combo. Your next mod should be to take that dealer sticker off the decklid.😄 I have a very different idea for a grey goose project.😉

https://fordauthority.com/2021/05/2015-lincoln-mkz-among-2021s-fastest-depreciating-cars/

Cool. I'd build it stock, of course.

I start out at 40 year-round.

"Post-mortem equine beating" I like that😄. Exactly. And in that vein, I think that this thread has reached the point counter-productivity, and it's time to move on. Hence, it's now closed to further discussion.

If that was all you wanted, all you had to do was look at the label in the door jamb of your car. Those instructions could have been found in your owners' guide.