5 Useful High Mileage Car Maintenance Tips
If your car has crossed the 100,000-mile mark, congratulations! That’s a milestone worth celebrating. Whether you’ve had your car since it was new or picked it up used, hitting high mileage is proof that with the right care, modern vehicles can last well beyond what many people expect.
But just because your car is still running doesn’t mean you can ease up on maintenance—in fact, it’s quite the opposite. High-mileage vehicles need more attention to keep performing reliably and safely. Here are five useful tips to help you maintain your high-mileage car and extend its lifespan.
1. Stick to a Strict Oil Change Schedule
Oil is the lifeblood of your engine, and for high-mileage vehicles, regular oil changes are more important than ever. As your car ages, engine parts wear down and tolerances loosen, making your engine more vulnerable to sludge, friction, and heat buildup.
Switching to high-mileage motor oil is often a smart move. These specially formulated oils contain additives that help reduce leaks and oil consumption, while conditioning aging seals and gaskets. They also include detergents that help break down buildup that can clog up the works.
Tip: Follow your vehicle’s manual for oil change intervals, but consider shortening the time between oil changes (every 3,000 to 5,000 miles) for vehicles with over 100,000 miles.
2. Keep an Eye on All Fluids—Not Just Oil
While oil gets most of the attention, your car runs on several other critical fluids. Transmission fluid, brake fluid, coolant, and power steering fluid all play vital roles in keeping your car running smoothly.
Over time, these fluids break down and become less effective. For high-mileage cars, it’s not uncommon for fluids to also pick up debris or develop small leaks that go unnoticed—until they become a problem.
Here’s a quick guide on what to check and when:
- Transmission Fluid: Change every 30,000 to 60,000 miles, especially in automatic transmissions. Delays can lead to shifting problems or major transmission repairs.
- Coolant: Flush the cooling system every 2 to 3 years to prevent overheating and corrosion.
- Brake Fluid: Replace every 2 years to maintain responsive brakes.
- Power Steering Fluid: Check regularly and top off if needed; replace every 50,000 to 75,000 miles.
Tip: If you’re not sure when these were last changed, a qualified mechanic can inspect fluid condition and let you know what needs attention.
3. Pay Attention to Unusual Noises, Smells, or Feelings
Older cars tend to “talk” more than newer ones. Rattles, squeaks, and groans can be early warning signs that something needs attention.
Don’t ignore:
- Squealing brakes
- A grinding noise when shifting gears
- A burning smell while driving
- A sudden change in how your car rides or handles
Even something as small as a vibration in the steering wheel can point to issues like worn suspension components, unbalanced tires, or alignment problems—all of which are common in higher-mileage vehicles.
Tip: Make a habit of tuning into your vehicle. If something feels off, it probably is. Addressing small problems early can prevent expensive repairs later.
4. Be Proactive About Belts, Hoses, and Gaskets
Rubber parts like serpentine belts, timing belts, radiator hoses, and gaskets degrade over time. In a high-mileage car, they’re more likely to become brittle, crack, or leak. Unfortunately, when these parts fail, they can cause major engine damage or leave you stranded.
A broken timing belt, for example, can lead to catastrophic engine failure in some cars. A leaking radiator hose can quickly cause the engine to overheat.
To stay ahead of the game:
- Inspect belts and hoses for cracks, wear, and stiffness.
- Replace the timing belt (if applicable) as recommended by the manufacturer—often around 60,000 to 100,000 miles.
- Watch for oil leaks around gaskets or a drop in oil levels between changes.
Tip: During routine maintenance, ask your mechanic to check all rubber components. Replacing these parts before they fail is much cheaper and safer in the long run.
5. Don’t Neglect the Suspension and Steering System
Your suspension and steering take a beating over the years, especially if you regularly drive on rough roads or in harsh weather conditions. Shocks, struts, ball joints, bushings, and tie rods all wear down with time—and your ride comfort and safety can suffer.
Common signs of suspension or steering problems include:
- Excessive bouncing after going over a bump
- Uneven tire wear
- Difficulty steering or a loose-feeling steering wheel
- A clunking sound when turning or driving over uneven surfaces
Worn suspension parts can affect your ability to brake effectively or steer precisely, especially in emergency situations.
Tip: Have your suspension inspected at least once a year, especially if your car has over 100,000 miles. Replacing worn parts can dramatically improve handling and ride comfort.
Bonus Tip: Choose a Shop That Knows High-Mileage Cars
Not every auto shop is equipped—or willing—to give high-mileage vehicles the specialized care they deserve. That’s why it’s important to find a mechanic who understands the needs of older cars and takes the time to inspect the little things that make a big difference.
At Above All Auto Repair in Fargo, ND, we pride ourselves on treating every car with the care and attention it deserves, no matter how many miles are on the odometer. Founded by Thomas, a seasoned automotive expert with a deep passion for cars, we provide top-quality repairs and maintenance tailored to keep your vehicle safe and reliable—whether it has 50,000 miles or 250,000 miles.
We understand that older cars have unique needs, and we take the time to look at the whole picture, not just the problem you came in for. From oil changes to suspension work to engine diagnostics, we’ve got the tools, experience, and dedication to keep your high-mileage vehicle in top shape.
Ready to Give Your High-Mileage Car the Care It Deserves?
Whether you’re trying to squeeze a few more years out of your ride or just want to avoid costly breakdowns, regular maintenance is your best defense. Let the trusted professionals at Above All Auto Repair help you stay ahead of problems and drive with confidence.
Contact us today to book your next appointment or to learn more about our services. We’re proud to be Fargo’s trusted dealership alternative, offering fair pricing, certified service, and honest advice—backed by years of experience and a true passion for cars.