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Hi TTM and welcome to the Lincoln MKZ Forums. While it is not a common issue, it can happen to all vehicles.   If you are worried about it, be sure to verify if it will be covered under that limited warranty. I tend to doubt it will.   Keep us updated and good luck.

Hi Don KY and welcome to the Lincoln MKZ Forum. Our vehicles are designed to run on 87 octane minimum and above. So 87 octane fuel is fine.   However, you will You will get full advertised power from your engine using 93 octane premium. Expect a ~5-10% power decrease using 87 octane, and using 89 or 91 octane will fall somewhere in th4e middle.   Opinion here: Unless you need full power all the time (towing, running the stop-light Grand Prix etc.), you can save money by using 87 octane. For reference, I use 87 octane 99% of the time, only filling with 93 if I'm feeling particular sporty once in a long while.   That being said...What is more important than fuel octane is fuel quality. So as long as we use 87 octane minimum fuel, it is recommended we fuel up at "Top Tier" rated stations and avoid cheap, generic stations of unknown quality.   For verification, we can also find this information in our Owner Manuals.   Let us know how you make out and good luck. 🍻

Not a Lincoln, but it does have a Lincoln V-12...

Have a 2.0 Turbo AWD and want to know if I should use premium gas.

In process of purchasing a 2016 MKZ for our son. Noticed the bottom of 2 front doors are rusting last evening. Decided to check this forum to determine if it was an isolated issue. We’re in Louisiana. The sale comes with an extended warranty that supposedly has 6 months left. Mileage under 62k.  Now to determine if extended warranty will cover repair, which apparently is a temporary fix., before signing on the dotted line. 

Hi. My 2016 does the same. Frustrating to say the least!  Mine is perfectly timed. After 1.5 hours, it goes off for 20 minutes and on for 30 until I have reached my destination. Took it to dealership for them to drive and keep for two days, and brought it back two other times. They just say they can’t fix!  

Hey everyone.  I've got a 17 Reserve MKZ.  I recently had the motor replaced due to an accident.  Motor runs great, my baby is finally back to her normal self, almost.  My noticed after I got the car back that I was having the check engine light pop on and it was throwing code P2066 (Fuel Level Sensor "B' Circuit Range/Performance.  Dealership stated it was the fuel pump.  Had that replaced but the issue is still there. Since the replacement of the fuel pump I am now getting U0155 and U0198.  Also I've noticed that the miles until empty is always off. So bad to the point I've run out of gas thinking there was more in there than there was.  I have an appt back at the dealership to see if this can be resolved there.  Just wanted your guys opinion and input on what might be causing this.  Any info would help.  Thanks!!

Hi Bigcat41059 and welcome to the Lincoln MKZ Forum. Unfortunately, as you have been told on multiple Lincoln MKZ and Lincoln Forums, the headlight housings are only vertically adjustable for aim.   If you wish to have your factory headlights aimed properly and eliminate the glare to other drivers, you will need to remove the incorrect aftermarket bulbs you installed, and install the proper factory bulbs.   Good luck.

Today I was putting gas in my 12 MKZ, didn't fill it, just put 20 bucks in and upon finishing I looked down and saw fuel leaking onto the pavement from under the car. I assume this is a filler tube issue, anyone else had this problem?

Sadly my 2011 MKZ Hybrid was taken out by a Michigan Whitetail Deer back in April. Had 213,000+ miles on it and was still going strong. Was still getting 37-40mpg at the time. Never had a major repair required the whole time I owned it.