1986 Oldsmobile 98 Car Batteries

1986 Oldsmobile 98 Battery Replacement & Size

Not sure what battery to get for your Oldsmobile 98? Use the following chart to find information on Oldsmobile 98 battery size and cold cranking amps.

Battery Engine Warranty Cold Cranking Amps
MT-78 V6/3.8L Replacement 24 months Performance 60 months 770
MTP-75 V6/3.8L Replacement 30 months Performance 72 months 700


- Battery: MT-78

- Warranty: Replacement 24 months, Performance 60 months

- Cold Cranking Amps: 770


- Battery: MTP-75

- Warranty: Replacement 30 months, Performance 72 months

- Cold Cranking Amps: 700

Shopping for Oldsmobile 98 Car Batteries

You can pretty much drive your Oldsmobile 98 until you don't want to anymore. But your 98's battery? Don't count on it to last forever. The average car battery lasts three to five years. You want to replace your 1986 Oldsmobile 98 battery before it fails and leaves you stranded. Watch for signs that your current battery is getting too old or too weak. A sluggish engine start, a blinking battery or check engine light, bloated battery case, corrosion-covered posts, or faded headlights can all signal that your battery is on its last leg.

Or, you can get a complimentary battery check at your nearest Firestone Complete Auto Care. With best-in-class tools we can tell you how much "life" is left in your battery. Drop in for a free battery check and, if needed, get your Oldsmobile 98 a replacement battery. Car batteries are one of our many specialties! Our technicians are familiar with Oldsmobile-specific recommendations for 98 car batteries’ reserve capacities and cold cranking amps. Get help figuring out the battery size that's best for your 98, and schedule an appointment today for a quick car battery replacement.

Are Interstate Batteries Good for 98s?

We know what’s best for your Oldsmobile 98, which is why we only carry top-of-the-line replacement parts and batteries. We install more than 700,000 car batteries a year using America's #1 replacement battery from Interstate Batteries. Interstate leads the way in terms of car battery reliability, charge capacity, and technology. That’s why it’s unsurprising to find an Interstate Battery in the engine of a Oldsmobile 98. Their tried and true products are commonly used in forklifts commercial trucks, utility vehicles, and even boats! You need a car battery that's just as dependable as your 1986 Oldsmobile 98. That's Interstate: Outrageously Dependable®.

After Buying 1986 Oldsmobile 98 Battery

Got a new car battery installed in your 1986 Oldsmobile 98? Good thinking! You can give your new battery a head start with proper care and attention. flipping the dome lights and headlights off when exiting the car, cutting back on unnecessary short trips, keeping the battery posts corrosion-free, and not playing the radio or using other electronics when the engine is turned 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 are happy to help.

  • Why doesn’t my 98 battery stay charged? A battery is in its final hour when it will no longer hold a charge. The battery may be too old. Or, you may have been leaving your car doors ajar and the dome lights on during the night. Stop in for a free battery check at your favorite Firestone Complete Auto Care and learn more about your battery's charge.
  • What happens to my old 98 battery? We’ll recycle your car battery for you!
  • What’s the cost of Oldsmobile 98 batteries? Get affordable prices on Oldsmobile 98 batteries by using one of our limited-time battery deals. And, all Interstate Batteries have a limited-time free replacement and performance warranty.

Get a Battery for Your Oldsmobile 98

Don't let a failing battery slow you down. Shop replacement batteries for 1986 Oldsmobile 98s today and schedule a quick installation at Firestone Complete Auto Care.