What type of motor oil do I use for 2014 Lincoln mkt?

When stepping on the gas you get a whining sound and it gets louder as you step on the accelerator also some of the instrument panel lights flicker? 94 camera convertible the top doesn't wont to go down if i push the switch button to make it come up you can hear it working when i push it down i dint hear anything i test the switch and? What would cause a 1989 jeep wrangler to not start I poured gas into the carb and it started for a few seconds and then died again. I did this repeatedly with same result. Already changed fuel filter? What size capacitor do you need for a 3000 watt amp? What happens if charger is connected to wrong terminals? What are uses of bone oil? How do you can the fan belt on a El Ford Falcon? Where is the egr valve located on a 1998 Cadillac STS? You have an 2002 PT wstock black bumpers What causes the darker outlines of the framing to show through the bumper and how can you get rid of it? Can you mix htf and atf fluids for case 360 trencher? Where is the flasher in a '94 Chevy Cavalier? Why does your 1991 Cadillac drain batteries over night? How can you tell if the struts on your vehicle need replacing? What happens if you mix diesel with petrol in a petrol car? Where is the brake fluid reservoir on a VW Sharan please? Where is the number one cylinder on the 1999 Honda CR-v 2.0? What are the kinds of temperature sensors in automotive use? What is the cross reference NAPA oil filter for a Briggs and Stratton oil filter? Can oil pan damage happen from towing? How much torque is needed on the flywheel bolts of a Ford Laser?