5 Common Oil Change Questions Answered

A pan waits to receive engine oil during a change.

Engines have evolved — they need less maintenance, produce more power and require less fuel. With a reduced maintenance regime, oil change services become even more important. Here are five common questions regarding engine oil change services.

1. When Does the Engine Oil Light Come On?

All cars have an oil warning light, usually red, which illuminates when the oil pressure or oil level is too low. Don’t ignore the engine oil pressure warning light. Shut the engine off immediately to prevent catastrophic damage.

If equipped, your dash may hold a second light that reads “maintenance required” or “oil life monitor.” The first light is straightforward: It simply illuminates after 5,000 miles. But when you reset an oil life monitor, it uses an algorithm to estimate oil wear, considering operating temperature, idle time, engine speed and engine load. The estimate is usually conservative, because changing engine oil too often is better than not often enough. It’s critical to take both lights seriously.

2. What Do Experts Say About Oil Changes?

Regular oil changes are the single most important thing you can do to maintain the life of your engine. Neglecting engine oil changes will inevitably lead to catastrophic engine failure. According to Road & Track, modern engines and oil companies are extending oil life up to 20,000 miles and beyond, during which time it’s exposed to the hottest parts of your engine. Today’s engine oil lasts longer than ever, but it still wears out faster than other engine components and fluids.

3. Does Year, Make or Model Make a Difference?

Yes. Always follow the manufacturer’s recommended engine oil type, viscosity and change interval. Generally, newer engines use lighter oil viscosities and allow for longer intervals. For years, the old rule of thumb was an oil change every 3,000 miles, but a 2019 Camry uses 0W-16 or 0W-20 every 10,000 miles, according to Toyota. Oil condition is critical for modern turbocharged engines, too.

4. What About Driving Conditions?

Driving conditions absolutely affect engine oil. That’s why monitors judge oil life based on engine temperature, idle time and engine load. The harder you push your engine, the more it impacts engine oil life. Engines love to be run, and highway cruising delivers the best combination of engine load and cooling. Short trips, stop-and-go traffic and aggressive driving increase wear on engine oil, so you’ll need to renew it more often.

5. What Happens If You Wait Too Long?

Extending oil change intervals is a bad idea. First, engine oil wears out over time. Oil additives help modern engine oils function in a variety of operating conditions, but these eventually burn off. Then, you’re left with the base oil and insufficient protection.

Second, all engines burn engine oil increasingly with mileage. If your five-quart engine burns a half-quart every 1,000 miles, and you wait 8,000 miles to change the oil, then just one quart of extremely abused engine oil remains.

Engine oil changes are more important than many drivers realize. However you change your oil — in a shop or on your own — do it on time, every time. Make sure to replace the engine oil filter at every oil change, too. Finally, check the oil level every 1,000 miles, topping it off if necessary.

You can save up to 20% off on select filters (air, cabin, oil) when you reserve online with participating stores or buy online ship to home.* Just remember, it’s a big job for an unassuming object, so don’t skimp on quality.

Check out all the maintenance parts available on NAPA Online or trust one of our 16,000 NAPA AutoCare locations for routine maintenance and repairs. For more information on oil changes, chat with a knowledgeable expert at your local NAPA AUTO PARTS store.

Photo courtesy of Flickr.

*Offer ends 12/31/18. May not be combined with other offers. Store participation and discount may vary. Exclusions apply. For warehouse items, availability may vary. For Reserve Online, please call store to verify before pickup; additional actions and shipping charges may be required. We may cancel, modify, or deactivate this offer at any time and it is subject to change. We reserve the right to limit quantities and correct errors without notice.

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