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How Long Does Synthetic Oil Last?

Oil is an important element that keeps a car engine running through a process of internal combustion. That lubricant can be synthetic or conventional oil and the former has the edge over the latter. But how long does synthetic oil last? Is the oil change interval similar to its traditional counterpart, or has a longer lifespan?

The engines in some older vehicles may not be compatible with synthetic oil, but newer engines are engineered for it. In fact, many manufacturers recommend using this oil to keep the warranty coverage valid.

How Long Does Synthetic Oil Last?

Synthetic oil is the most expensive of all types of lubricants used for running the engine. It has a longer lifespan and provides protection against heat, erosion, and sludge. There is also a synthetic blend that offers better performance than conventional oil and costs less than pure synthetic oil.

So, how long does synthetic oil last? Well, the additives and detergents in it make sure an extended life. It wears out at a slow rate because its chemical base makes it thick at low temperature and thin at high temperature.

synthetic oil vs conventional oil
Synthetic oil is better than conventional lubricant.

Depending on the brands, synthetic oil can last for 5,000 to 15,000 miles. Some companies like Mobil 1 and Royal Purple offer better products than other brands.

Remember that the life expectancy of synthetic oil depends not only on the additives present in it but also a few other factors like resistance to oxidation and viscosity tolerance at various temperatures.


What Is The Oil Change Interval For Synthetic Oil?

Most car servicing businesses recommend changing oil at every 3,000 miles. The truth is that the rule is nothing but a marketing gimmick. Older formulations of mineral-based oil may need to maintain that changing routine, but it does not apply to the engine lubricants these days. Even conventional oil offers a longer lifespan.

The oil changing schedule of synthetic oil is at least one year or 5,000 miles. However, it really depends on the car model, oil quality, and brand. For example, Kia and Hyundai models with a turbocharged engine need to change the oil at every 5,000 miles while the oil used for Toyota and Jaguar vehicles can last up to 10,000 and 15,000 miles, respectively.

Considering brands for automotive lubrication products, Mobil 1 is on top with a high-performance oil with an extended lifespan. It lasts up to 15,000 miles given you are using a premium oil filter, and the engine is compatible with this lubricant.

How long does synthetic oil last
Oil change interval is longer than regular oil.

Factors That Shorten The Life Of Engine Oil

How long does synthetic oil last? You already know the answer. But there are several factors that can cut that lifespan short. Synthetic oil may not perform to your expectation for these following factors:

  • The engine in older vehicles. Engines in newer cars are more compatible with synthetic oil.
  • Performance vehicles. Performance-based engines require more oil changes they burn the fuel at a faster rate.
  • Driving style. Rough driving and aggressive acceleration shorten the life of engine oil.
  • Hauling heavy stuff. The engine works harder when you are towing cargo around.
  • Extreme climate conditions. Extreme cold and heat puts more strain on the oil.