Things to Know About Vehicle Oil Systems

Take care of your Subaru and it'll take care of you. Did you know that 97% of Subaru vehicles built in the past 10 years are still driving today? So you know a Subaru is built to last. Let us help you maintain it properly, so it lasts even longer!

The engine oil system in a modern car requires the most maintenance, including regular oil and filter changes. Learn what you can do to take the best care of your Subaru and its engine oiling system on this page from the experts at Subaru of San Bernardino.

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What's the Best Engine Oil for my Subaru?

The answer lies in your owner's manual. Our recommendation at Subaru of San Bernardino is to simply use exactly what oil is suggested in the owner's manual. The correct type, weight and viscosity of the oil you should use may also be found on the engine oil cap under the hood.

For example, while most Subaru cars are equipped with synthetic oil from the factory, the six-cylinder 3.6L BOXER® engine available on the Legacy and Outback still comes standard with 5w-30 conventional oil. You can upgrade to synthetic oil if you like, but we recommend sticking with the exact same oil that came with your car from the factory -- at least until the engine reaches +75,000 miles, at which point switching to a high-mileage synthetic oil or synthetic blend can help protect your aging engine.

Some mechanics might suggest changing engine oils to suit different conditions or help prevent oil leaks, but we don't agree with this. In our view, it's best to use the same engine oil all the time, so the engine experiences consistent oil flow.

Learn more about your Subaru's oil system.

Do I Need to Change the Oil Filter?

Yes. The official Subaru factory recommendation is to replace the oil filter with every oil change.

That's because the oil not only helps to lubricate the engine, it helps to keep it clean. Contaminants like corrosion, dirt, rust and carbon build-up are collected by the engine oil and captured by the oil filter. If the oil filter becomes clogged, oil flow could be impeded and rob you of performance. It could even damage the engine! For best results, have your oil filter replaced regularly, too.

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Should my Subaru Engine be Burning Oil?

Burning a little bit of oil is okay in higher mileage Subaru BOXER® engines. In fact, Subaru considers this 'normal oil consumption.' However, if your engine is consuming oil at a more rapid pace, the engine may be in need of service.

If your engine is burning some oil, just check the level periodically using the dipstick. When it's low, simply go under the hood and top off the system with the recommended oil. You won't need to go under the car to drain the oil pan or replace the oil filter -- you can continue to leave that to the professionals. Just add a little bit of oil as necessary between oil changes to keep your engine protected.

How Often should I Change the Oil in my Subaru?

If your Subaru is equipped with conventional oil, we recommend following the typical rule of thumb: Get your oil changed every 3,000 miles.

According to Subaru recommendation, you can go at least 6,000 miles in your vehicle between changes with synthetic engine oil -- however, if you experience intense driving conditions routinely (such as heavy track day acceleration and braking, off-roading, stop-and-go traffic or frequent wide-open throttle) it's a good idea to get your oil changed even more often, for maximum engine protection.

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Subaru of San Bernardino

645 Auto Center Dr
Directions San Bernardino, CA 92408

  • Sales: 909-888-8686
  • Service: 909-571-5305
  • Parts: 909-571-5397
  1. Subaru of San Bernardino

    645 Auto Center Dr
    San Bernardino, CA 92408

    • Sales: (877) 501-8065

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