Car Batteries for 1991 Oldsmobile 98

Get a New Oldsmobile Battery

Get a Battery for Your Oldsmobile 98

Don't let a failing battery slow you down. Shop replacement batteries for 1991 Oldsmobile 98s today and schedule a quick installation at Firestone Complete Auto Care.

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The Right Battery Size for a 1991 Oldsmobile 98

Researching battery replacements for your Oldsmobile 98? Use this chart to find the right battery size and CCAs for your Oldsmobile 98.

Battery Engine Warranty Cold Cranking Amps
75-2 V6/3.8L Replacement 24 months Performance months 650
78FT-2 V6/3.8L Replacement 36 months Performance months 800
BATTERIES

V6/3.8L

- Battery: 75-2

- Warranty: Replacement 24 months, Performance months

- Cold Cranking Amps: 650

V6/3.8L

- Battery: 78FT-2

- Warranty: Replacement 36 months, Performance months

- Cold Cranking Amps: 800

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Buying a Replacement Battery for Oldsmobile 98

Your 98 doesn't have an expiration date, but its battery does. Generally, car batteries last from three to five years. Don’t get stranded by your 98’s car battery. Replace it regularly instead! Pay attention to clues that your battery is on its way out. A sluggish engine start, a blinking battery or check engine light, swollen battery case, corrosion-covered posts, or faded headlights may all indicate that your battery is waving goodbye.

Plus, at Firestone Complete Auto Care, we’ll test your battery for free. Our equipment can see how much charge is left in your battery. Stop by for a free battery test and, if needed, get your Oldsmobile 98 a replacement battery. Car batteries are only one of our many strong suits. Our technicians are familiar with Oldsmobile-specific recommendations for 98 battery cold cranking amps and reserve capacity. Get help figuring out the battery size that matches your vehicle, and schedule a fast car battery replacement at your earliest convenience.

Find the Right DieHard Battery for Your 98

We know what’s best for your Oldsmobile 98, which is why we carry just that. You need a reliable, durable and powerful battery in even some of the toughest conditions. DieHard 98 batteries surpass expectations using the latest innovative technology to meet the growing power needs of modern vehicles They're no ordinary battery, they're extraordinary. Choose a DieHard battery for your Oldsmobile 98 and drive with confidence knowing that performance will be there when you're counting on it. That's the kind of battery we deliver.

Caring for a New Oldsmobile 98 Battery

Did you recently have a new 1991 Oldsmobile 98 car battery installed? Great job! Now, help it last longer and stay charged by caring for it from the get-go. Help extend your car battery’s life by limiting short trips, keeping your battery posts clean, and avoiding radio and electronic component use when the engine is off.

Commonly Asked 98 Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have a 98-specific battery question, pay us a visit. Our technicians have the answers.

  • Why won't my 98 battery stay charged? A battery is in its final hour when it will no longer hold a charge. The battery might be old. Or, you may have a habit of leaving your car doors open and the lights on overnight. Stop in for a free battery check at your favorite Firestone Complete Auto Care and get a handle on your car battery’s health.
  • What do you do with my old 98 battery? We recycle it, taking care of both your car and the Earth.
  • What’s the cost of DieHard batteries for Oldsmobile 98s? Oldsmobile 98 batteries can be affordable, especially when there's an available battery coupon. The best part is every DieHard battery comes with a free replacement warranty and extra coverage with DieHard Assurance.
  • What is the average lifespan of a car battery? Car battery lifespan varies depending on a few factors, including driving conditions, accessories,  how well it’s maintained, and the type of battery. On average, a car battery lasts about three to five years.
  • Why is there white, flaky stuff around my 98’s battery post? If you notice white, crusty stuff around the battery terminals of your 98, it's likely corrosion. A chemical reaction between battery acid and the air can create a white, powdery substance that builds up over time on the terminals. This buildup can interfere with the electrical connection between the battery and your 98’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.
  • How do I remove corrosion from my 98 car battery? Regularly inspecting and cleaning your battery terminals will help keep your 98’s electrical system running smoothly. Before cleaning, reference your owner’s manual for instructions on how to disconnect the battery cables. Once the cables have been disconnected, gently clean the terminals with a mixture of water and baking soda, a wire brush, and a rag.
  • Who sells 98 batteries near me? When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install 98 batteries at our stores nationwide — and our Firestone Direct mobile vans can provide convenient on-site battery services. Learn more about our mobile battery services and book an appointment.