Ancient-Astronaut-98@alien.topB to Mechanic Advice@gearhead.townEnglish · 10 months ago

Does optimal engine oil grade change with mileage?

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Does optimal engine oil grade change with mileage?

Ancient-Astronaut-98@alien.topB to Mechanic Advice@gearhead.townEnglish · 10 months ago

I have a 2006 toyota vitz thats done 190K+ kilometers.

According to online sources, the 1 KR FE engine in my car should be filled with 5w30 grade oil.

However my friend whos very into cars advised me to get a higher grade due to the high mileage.

Should I? And if so, is there some foolproof chart?

Exactly what grade oil should I get?

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Ravenblack67@alien.topB
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10 months ago
There is some truth to changing the viscosity of engine oil as the car ages. That was decades ago. Modern oils and engines are very different. Stick with 5W-30.

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