Help your 1989 GMC S15 run newer, longer with routine oil changes. Schedule your oil change appointment today.
Need more info about 1989 GMC S15 oil changes? Look no further than Firestone Complete Auto Care! We're experts in more than tires. We know all about motor oil, too. We couldn’t put it better than our technician, Brianna. She likes to explain to customers that, “Oil is the blood of the engine. It’s the #1 thing you can do for your car.”
Your 1989 S15’s oil should be changed according to GMC’s recommended oil change intervals. Check out mileage and month info for your S15 in the above table. No matter the mileage, your S15 may need its oil changed ASAP if your check engine light is on, you hear knocking sounds coming from the engine, smell oil inside the car, or see an excess amount of vehicle exhaust. You may also need an oil change more frequently than GMC recommends if you haul heavy loads, drive in dusty areas, enjoy off-roading, or go at low speeds on long distance trips. Generally, getting more frequent oil changes won’t hurt your GMC S15. 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 GMC S15. GMC has recommendations as to whether conventional or synthetic oil is the ideal engine oil for your 1989 S15. This oil helps lubricate engine parts, keep the engine cool, and keep harmful substances from building up inside the engine. In an oil change service, a technician will change your S15's oil, replace and recycle your used oil and oil filter, inspect the rest of your car’s filters, top-off essential fluids, and perform a free inspection on the rest of your vehicle. You can drive easy knowing that we strive to do what's best for your vehicle and take into account your driving preferences, and mileage.
Wondering if we carry the right motor oil for your GMC? Your S15 engine deserves the very best, which is why we only stock the best! Consult GMC's recommendations to select the right 1989 S15 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. With so many motor oil brands in the market, why do we carry 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.  Pennzoil is another option. Pennzoil Synthetics are the most technologically advanced, fully formulated motor oils available and exceed current industry and manufacturer requirements. Then there's Shell Rotella heavy-duty engine oil. It's made for gasoline and diesel engines that need to overcome the strenuous working conditions, and is uniquely fortified to offer heightened performance in extreme temperatures, increased wear protection, and better oxidation resistance. For help selecting the right motor oil for your 1989 GMC S15, defer to GMC's recommendations.
When it's time for a 1989 GMC S15 oil change, you know where to turn. Your local Firestone Complete Auto Care has some of the best motor oil for GMC S15s. We'll take care of you quickly, with the right oil at the right price. Find out how much your GMC S15 oil change will cost by calling ahead. Make an appointment for an oil change service today and let the oil experts take care of your S15's engine. 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.