4 Maintenance Tips for Keeping Your Engine in Great Long-Term Health

Interstate Automotive • August 21, 2025
Mechanic checking car engine oil, hands holding a yellow oil cap, in a car repair shop.

Keeping your engine in great condition is essential for reliable performance and long-term value. Neglecting engine maintenance can lead to costly repairs, poor fuel-economy, and even complete engine failure. Fortunately, consistent care can keep your engine running smoothly for many miles to come. Here are four basic maintenance tips that will help preserve your engine’s long-term health.


Change the Oil and Filter Regularly

Oil is essential for lubricating the engine’s moving parts and preventing excessive wear. Over time, oil breaks down and becomes contaminated with dirt and debris, which can cause friction and damage. Following the manufacturer’s recommended oil change schedule is one of the most important steps you can take to protect your engine. Always replace the oil filter during each oil change to ensure your engine receives clean, effective lubrication.


Replace the Air Filter When Needed

Your engine needs a clean air supply for efficient combustion. A clogged or dirty air filter restricts airflow, making the engine work harder and reducing fuel-efficiency. Replacing the air filter at regular intervals helps maintain optimal performance and protects your engine from harmful contaminants.


Stay on Top of Spark Plug Maintenance

Spark plugs ignite the air-fuel mixture inside the engine’s cylinders, playing a vital role in engine operation. Worn or fouled spark plugs can cause misfires, rough idling, and reduced fuel-economy. Depending on your particular vehicle and spark plug type, spark plugs typically need to be replaced somewhere between 30,000 to 100,000 miles. Keeping them in good condition helps ensure efficient combustion and smooth engine performance.


Address Warning Signs Early

If your check engine light comes on, your engine starts making unusual noises, or you notice a drop in performance, don’t ignore the symptoms. Small issues can quickly become major problems if left unchecked. Regular inspections and timely repairs are key to keeping your engine running strong for years to come.


Engine Repair & Maintenance in Olympia, WA

For an experienced mechanic in Olympia, WA and the surrounding area, contact Interstate Automotive at 360-505-7292. Feel free to give us a call to schedule an appointment!

5 Warning Signs that It’s Time for Alternator Replacement

By Interstate Automotive • November 21, 2025
Your vehicle’s alternator plays a crucial role in keeping the electrical system running smoothly. It charges the battery and powers essential components like the headlights, dashboard lights, and power windows while the engine is running. When the alternator begins to fail, your car can quickly experience electrical issues and even lose power completely. At Interstate Automotive, we provide expert alternator replacement and auto electric repair in the greater Olympia area. Here are five common signs that it may be time to replace your alternator. Problems with Lights One of the most common signs of a failing alternator is dim or flickering lights. You might notice your headlights or dashboard lights growing noticeably weaker. Since the alternator powers your vehicle’s lighting system, inconsistent brightness often points to irregular power output. Weak or Dead Battery While batteries can wear out on their own, a weak or frequently dead battery can also be a symptom of a failing alternator. If you’ve replaced your battery recently but it continues to lose charge, your alternator may be the real problem. The mechanic can test your charging system to confirm whether the alternator is functioning properly. Unusual Sounds Under the Hood A failing alternator can produce unusual noises that indicate trouble. Grinding or whining sounds may come from a worn-out bearing or a belt issue in the alternator. Having the alternator inspected at the first sign of unusual noise can potentially prevent bigger problems. Warning Light on the Dashboard Modern vehicles often feature a dashboard warning light shaped like a battery or labeled ALT or GEN. When this light turns on, it’s a signal that your charging system isn’t working correctly. While this warning could indicate a battery problem, it frequently points to a malfunctioning alternator. Don’t ignore the light—have your vehicle checked by a professional to diagnose the issue before it worsens. Electrical Accessories Malfunctioning If your power windows, radio, or air conditioning begin to behave erratically, it could be due to inconsistent power supply from a bad alternator. The alternator may not be generating enough electricity to support all systems, especially when demand is high. When multiple accessories start acting up at once, it’s a warning sign that your alternator is no longer keeping up with your vehicle’s electrical needs. Alternator Replacement & Auto Electric Repair in Olympia, WA For auto repair in Olympia and the surrounding area, contact Interstate Automotive at  360-505-7292  . Feel free to give us a call to make an appointment!

4 Signs that Your Car Needs Brake Repair Now

By Interstate Automotive • October 24, 2025
Your vehicle’s brakes are one of its most critical safety systems, and any issue with them should be taken seriously. When brakes start to fail, stopping distances increase, handling becomes unpredictable, and the risk of accidents rises dramatically. Recognizing early warning signs can help you avoid costlier repairs and stay safe on the road. At Interstate Automotive, we provide expert brake repair in the greater Olympia, WA area. If you notice any of the following symptoms, it’s time to schedule professional brake service immediately. Strange Noises Unusual sounds coming from your brakes are one of the most common indications of trouble. A high-pitched squealing noise usually means the brake pads have worn thin. If the sound is more of a harsh grinding, it could mean the pads are completely worn out, and metal is scraping against metal. Continuing to drive with grinding brakes can damage rotors, so prompt attention is essential. Soft Brake Pedal If your brake pedal feels soft, spongy, or sinks quickly toward the floor when pressed, that’s a warning sign of a problem in the hydraulic system. This may be due to air in the brake lines or a fluid leak. A soft pedal means your brakes aren’t generating proper pressure, putting you at serious risk if you need to stop suddenly. If your car is leaking brake fluid, it’s a major safety hazard and best to get towed to the shop. Vibrations When you press the brake pedal and feel vibrations or pulsing, it often indicates warped rotors. This can happen from excessive heat buildup and uneven wear. Pulsing brakes reduce stopping efficiency, so it’s best to have a technician diagnose and resolve the issue as soon as possible. Warning Light on the Dashboard If your brake warning light appears on the dashboard, it’s your car’s way of alerting you to a potential issue. Even if the brakes feel normal, an illuminated light should never be ignored. A technician can run diagnostics to determine the exact cause and prevent a small issue from becoming a major one. Brake Repair in Olympia, WA For auto repair in Olympia and the surrounding area, contact Interstate Automotive at  360-505-7292  . Feel free to give us a call to make an appointment!