Question 1

How often should I change my oil?

Accepted Answer

Conventional oil: every 5,000–8,000 km (3,000–5,000 miles). Synthetic blend: every 8,000–12,000 km (5,000–7,500 miles). Full synthetic: every 12,000–24,000 km (7,500–15,000 miles). Severe driving requires shorter intervals.

Question 2

Is the old 5,000 km oil change rule outdated?

Accepted Answer

For modern cars using full synthetic oil, yes. Most 2010+ vehicles can safely go 10,000–15,000 km between changes. Always consult your owner's manual for the manufacturer's specific recommendation.

Question 3

What counts as severe driving?

Accepted Answer

Severe conditions include: many short trips under 10 minutes, extreme hot or cold temperatures, dusty environments, towing or hauling heavy loads, and stop-and-go city traffic. These conditions accelerate oil degradation regardless of km or miles.

Oil Type	Severe	Normal	Highway
Conventional	3,000 mi / 5,000 km	5,000 mi / 8,000 km	5,000 mi / 8,000 km
Synthetic Blend	5,000 mi / 8,000 km	7,500 mi / 12,000 km	7,500 mi / 12,000 km
Full Synthetic	7,500 mi / 12,000 km	10,000 mi / 16,000 km	15,000 mi / 24,000 km

Oil Change Interval Calculator

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Oil Change Intervals by Type

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