Help your 1991 Regal engine last longer with regular oil changes and lube service. Schedule an appointment now!
Looking for oil change recommendations for your 1991 Buick Regal? Look no further than Firestone Complete Auto Care! Our expertise goes beyond tires. We know the ins and outs of 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.
Your 1991 Regal’s oil should be changed according to Buick’s recommended oil change intervals. Check the interval for your vehicle mileage in the table above. Outside of Buick-recommended oil change intervals, your Regal may need an oil change if your check engine light is on, you hear engine knocking, smell oil inside the car, or see an excess amount of vehicle exhaust. You might need an oil change more frequently than what’s recommended by Buick if you regularly haul heavy loads, drive in dusty terrain, go off-roading a lot, or go long distances at low speeds. More frequent oil changes generally won't harm your Buick Regal. 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 you need high mileage oil, synthetic oil, or conventional oil, you'll find the right 1991 Buick Regal motor oil at Firestone Complete Auto Care. Buick has specifically identified either synthetic or conventional as the best oil for 1991 Buick Regal vehicles. Motor oil helps lubricate the engine’s moving parts, regulate engine temperature, and prevent the build-up of harmful substances within the engine. During your oil change service, a technician will change your Regal's oil, replace and recycle your used oil and oil filter, inspect all of your other filters, refill vital car fluids, and perform a courtesy inspection on your entire vehicle. You can drive with confidence knowing that we look out for you and your Regal by taking into account your driving habits, climate,
Wondering if we carry the right motor oil for your Buick? We stock outstanding motor oils because that's what your engine deserves. Check your owner's manual and talk with a technician to select the right Buick Regal oil, whether it's Quaker State® Advanced Durability™ conventional oil, Pennzoil® High Mileage Vehicle® motor oil, Pennzoil Platinum® Full Synthetic motor oil with PurePlus™ Technology, or Shell Rotella® heavy-duty engine oil. With so many motor oil brands in the market, why do we carry these brands? They are proven winners. For instance, Quaker State was shown to provide 2x more protection than the industry standard when tested in taxi fleets across the country.  Pennzoil is another option. Pennzoil Synthetics are the most technologically advanced, fully formulated motor oils available and exceed current industry and manufacturer requirements. For heavy-duty engines, there's Shell Rotella. It's specifically designed for diesel and gasoline engines that need to survive the toughest working conditions, and is uniquely strengthened to deliver increased wear protection, heightened performance in extreme temperatures, and improved oxidation resistance. For help selecting the right motor oil for your 1991 Buick Regal, defer to Buick's recommendations.
When the time for your Regal’s next oil change rolls around, you know where to go! Your local Firestone Complete Auto Care carries some of the most reliable engine oils for Buick vehicles. We'll take care of you quickly, with the right engine oil at a competitive price. Find out how much your Buick Regal oil change will cost by calling ahead. Let the experts take care of your Regal’s engine by making an oil change appointment today. For your convenience, many of our stores are open late and on weekends!
 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.