Help your 1991 Grand Marquis engine last longer with regular oil changes and lube service. Schedule an appointment now!
Not sure how or where to get your Mercury Grand Marquis’s oil changed? Get the advice you need at Firestone Complete Auto Care! We are experts in car care — not just tires. We know all about motor oil, too. After all, "Oil is the blood of the engine. It's the #1 thing you can do for your car," says our maintenance technician, Brianna.
Mercury recommends having your 1991 Mercury Grand Marquis’s motor oil changed at regular intervals. See mileage and month specifics in the above table. Your Grand Marquis may need an oil change right away if your check engine/oil change light is on, you hear knocking sounds coming from the engine, smell oil inside the vehicle, or notice an unusual amount of exhaust. You might need an oil change more frequently than what’s recommended by Mercury if you regularly haul heavy loads, drive in dusty terrain, adventure off-road, or drive at low speeds for long distances. Generally, getting more frequent oil changes won’t hurt your Mercury Grand Marquis. In fact, more frequent oil changes give our technicians more opportunities to catch and alert you to any issues, like worn brake pads or a weak battery.
Whether it’s synthetic, conventional, or a blend of both — your local Firestone Complete Auto Care has the right oil for your Mercury Grand Marquis. Mercury has recommendations as to whether conventional or synthetic oil is the best oil for 1991 Mercury Grand Marquis vehicles. Motor oil reduces friction between engine components, regulate engine temperature, and keep harmful substances from building up inside the engine. During an oil change, an auto technician will change your Grand Marquis’s oil, replace and recycle your used oil and oil filter, check all of your other filters, top-off essential fluids, and perform a courtesy inspection on your entire vehicle. You can rest assured knowing that we seek to do what’s best for your Grand Marquis by considering your driving style, and the number of miles on your odometer.
Wondering what motor oil brands you can find at Firestone Complete Auto Care? We stock outstanding motor oils because that's what your engine deserves. Talk with a teammate and consult your owner's manual before picking a motor oil. At Firestone Complete Auto Care, you can choose from the following oils: Quaker State® Advanced Durability™ conventional oil, Pennzoil® High Mileage Vehicle® motor oil, Pennzoil Platinum® Full Synthetic motor oil with PurePlus™ Technology, and Shell Rotella® heavy-duty engine oil. There are plenty of motor oils on the market today, so why do we prefer these brands? They are tested and trusted. For instance, Quaker State was shown to provide 2x more protection than the industry standard when tested in taxi fleets across the country. [1] And Pennzoil? Unlike traditional synthetic motor oils, the Pennzoil Platinum® Full Synthetic line of motor oils with PurePlus® Technology is formulated from pure natural gas, which helps lead to better performance. Then there's Shell Rotella heavy-duty engine oil. It's expressly designed for gasoline and diesel engines that need to withstand rugged conditions, and is fortified to deliver heightened performance in extreme temperatures, increased wear protection, and better oxidation resistance. Always refer to Mercury's recommendations before going with a new or different motor oil for your 1991 Mercury Grand Marquis.
The next time your Mercury Grand Marquis needs an oil change, you know where to go! Your nearest Firestone Complete Auto Care has the ideal oil for your Grand Marquis’s engine. We'll take care of you quickly, with the right engine oil at a competitive price. To find out how much a 1991 Grand Marquis oil change costs, call ahead. Get professional engine care by making an oil change appointment for your Grand Marquis today. Many stores are open late and on weekends for your convenience.
[1] ILSAC GF-5 represents the latest performance standard set by the International Lubricant Standardization and Approval Committee (ILSAC), a joint effort of U.S. and Japanese automobile manufacturers. Most automobile manufacturers are expected to recommend oils that meet ILSAC GF-5. API SN is the most recent service category issued by API’s Lubricants Group. Oils meeting API SN and the new “Resource Conserving” designation meet all ILSAC GF-5 performance requirements.