Help your 1985 GMC K1500 Suburban run newer, longer with routine oil changes. Schedule your oil change appointment today.
Looking for oil change recommendations for your 1985 GMC K1500 Suburban? Look no further than Firestone Complete Auto Care! Our expertise goes beyond tires. We know all about motor oil, too. After all, like our maintenance technician Brianna says, “Oil is the blood of the engine. It’s the #1 thing you can do for your car.”
GMC recommends changing your 1985 K1500 Suburban’s oil at regular intervals. See mileage and month specifics in the above table. Outside of GMC-recommended oil change intervals, your K1500 Suburban may need an oil change if your check engine light is on, you hear engine knocking, sense an oil smell in the cabin, or notice excess vehicle exhaust. You might need an oil change more frequently than what’s recommended by GMC if you regularly haul heavy loads, frequent dusty roads, enjoy off-roading, or go long distances at low speeds. In general, being extra-diligent about oil changes won’t damage your GMC K1500 Suburban. 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.
Your local Firestone Complete Auto Care has the right 1985 GMC K1500 Suburban motor oil: either synthetic or conventional. GMC has specifically identified either synthetic or conventional as the ideal engine oil for your 1985 K1500 Suburban. This oil helps lubricate engine parts, regulate engine temperature, and prevent harmful substances from accumulating in the engine. In an oil change service, one of our techs will change your K1500 Suburban’s oil, replace and recycle your used oil and filter, check all of your other filters, top-off essential fluids, and visually inspect the rest of the vehicle. You can drive easy knowing that we strive to do what's best for your vehicle and take into account your driving habits, climate,
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. Consult GMC's recommendations to select the right 1985 K1500 Suburban oil and talk with a teammate to learn more about our oil options: 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's a reason we carry these motor oil brands. They are tested and trusted. For example, when tested in taxi fleets across North America, Quaker State was shown to provide 2x more protection than the industry standard.  And Pennzoil? Pennzoil Synthetics feature the capabilities to advance with vehicle technology to offer complete protection for not only the engines of today, but also the engines of tomorrow. Then there's Shell Rotella heavy-duty engine oil. It's made for gasoline and diesel engines that need to survive the toughest working conditions, and is uniquely fortified to offer increased wear protection, heightened performance in extreme temperatures, and improved oxidation resistance. For help selecting the right motor oil for your 1985 GMC K1500 Suburban, defer to GMC's recommendations.
The next time your GMC K1500 Suburban needs an oil change, you know where to turn. Your local Firestone Complete Auto Care carries some of the most reliable engine oils for GMC vehicles. We’ll take care of you and your car at your convenience, with the right oil at the right price. Find out how much your GMC K1500 Suburban oil change will cost by calling ahead. Let the experts take care of your K1500 Suburban’s engine by making an oil change appointment today. Many stores are open late and on weekends for your convenience.
 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.