How Often Should I Change Synthetic Oil For My Toyota? (Change Intervals)

how often to change synthetic oil toyota

Do you know how often you should change synthetic oil for your Toyota or the perfect change intervals? this is one of the questions our readers ask a lot. Well, we´ve got you covered.

Conventional motor oil is basically mineral oil that’s been refined and cleaned up for use in motor vehicles.

Synthetic motor oil is a much more involved product that undergoes “synthesis,” changing it at the molecular level to provide a higher level of engine performance. 

So, how often should I change synthetic oil for Toyota? The traditional answer is that you should change the synthetic oil in your Toyota every 5,000 miles. However, synthetic oil is designed to last much longer than that, upwards of 15,000 miles depending on the brand.

Synthetic motor oils are simply better, in almost every way, than conventional motor oil, including synthetic and conventional blends, typically called “synthetic blend” motor oil.

A conventional oil change is considered necessary every 3,000 miles or three months.

However, even conventional oils have advanced as well, making the 3,000-mile oil change limit questionable for those formulas too. 

Can You Go Over 5,000 Miles With Synthetic Oil In A Toyota?

Synthetic oils are usually added to vehicles after they’ve been on the road for thousands of miles using conventional oil changes every three thousand miles.

The traditional wisdom is one that is stubborn and refuses to let go of the 3,000 or 5,000 mile limit on oil changes.

Fortunately, times have changed. Modern oils, even the conventional motor oils, are far more “high-tech” than they are given credit for.

While some are still stuck in the old mindset, refusing to budge, experts now admit that you can go a lot farther on a single oil change than you used to. 

  • Conventional Motor Oil: 3,000 to 5,000 miles between oil changes
  • Synthetic Blend Motor Oil: 5,000 to 8,000 miles between oil changes
  • Full Synthetic Motor Oil: 7,500 to 15,000 miles between oil changes

Prevailing wisdom demands that we change our oil every 3,000 miles, however, not only is it extremely wasteful—in both oil and money—it’s also an added layer of strain on the environment. 

Excess disposal, refinement, and oil that is still good going to waste, certainly isn’t helpful to anyone, especially to your pocketbook.

Of course, an oil change mechanic will have purple-faced fits of apoplexy if you don’t show up every 3,000 miles.

However, that’s usually because changing your oil is a part of their livelihood, rather than the actual science on the benefits of synthetic oil.

So long as you are routinely checking your oil levels every week or so, it’s safe to go 10,000 miles or more on a synthetic oil change. 

Toyotas are already renowned for their long-term durability. Adding synthetic oil into the mix only improves engine performance and longevity on the road.

Since synthetic formulas maintain their viscosity for far longer than conventional oils, it will protect your Toyota’s moving parts for far longer as well. 

Read also: How Long Does An Oil Change Take At A Dealership? (Best Tips!)

What Are The Benefits Of Synthetic Oil?

The benefits of synthetic oil over conventional and synthetic blends are numerous. It’s also part of the reason why synthetic oil is so much more expensive. 

  • Performs better at high temperature
  • It’s a cleaner running oil
  • Protects better against engine wear and tear
  • Performs better at low temperatures
  • Better for performance engines
  • Lasts far longer than conventional and synthetic blend formulas

Conventional oils tend to foam up and lose all of their engine-protecting viscosity at extremely high temperatures.

Synthetic oil is designed to be more heat resistant, maintaining its viscosity at temperatures that would convert conventional oil into foam.

Synthetic formulas stay cleaner and therefore clean better. In fact, synthetic oil is advisable if your engine is reaching a point where sludge build-up has become a factor.

Not only will synthetic oil not add to the sludge, but it will also actively help to remove it.

Synthetic oil is much more viscous than conventional oil. As conventional oil breaks down or loses viscosity because of the heat, it no longer protects the many metal-on-metal moving parts of your engine.

Synthetic oil maintains its properties and viscosity for far longer than conventional oil and is, therefore, a higher quality oil for maintaining a strong level of protection.

Conventional oils become sluggish and lose much of their viscosity in cold weather, especially extremely cold temperatures.

During the winter, it’s often advisable to switch to a dual-grade conventional oil to combat the cold temperatures.

Synthetic oils protect better in the heat and the same holds true for the cold. They are more resilient to fluctuations between winter and summer weather than conventional oils and are more dependable without having to change grades or weights with the season. 

Performance engines are better served with synthetic oil because of all of the reasons listed above. Performance engines are placed under a much higher level of strain than typical engines and require a far more resilient oil that can deal with the high heat. 

Lastly, synthetic oils last much longer than conventional formulas for all of the above reasons as well. 

Read also: Who Makes Kirkland Motor Oil? (Warren Distribution – The Truth!)

Final Word

There have been so many advancements in the realm of oil refinement and synthesis that the old schools of thought no longer apply to modern oils.

Synthetic, synthetic blends, and even conventional oils are more than capable of outlasting the status quo and lasting for thousands of miles over the traditional oil change intervals.

Synthetic oils especially are designed with the long term in mind.

Due to their ability to withstand the elements of heat, cold, time, wear and tear, and sludge, synthetic oils, rather than conventional and synthetic blends, are the new standard in modern-day vehicles.

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Jeff is an automotive technician, technical writer, and Managing Editor. He has held a lifelong passion for cars, with a particular interest in cars like the Buick Reatta. Jeff has been creating written and video content about transportation, automotive, electric cars, future vehicles as well as new, used for more than 18 years. Jeff is based in Boulder, Colorado.

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