CalKit

Oil Change Calculator

Calculate oil change interval.

km
km
남은 거리
정상
4,000 km

교환 주기 상세

기본 교환 주기10,000 km
주행 스타일 보정×1.0
보정 교환 주기10,000 km
교환 후 주행 거리6,000 km
오일 사용률60%
잔여 거리4,000 km
다음 교환 주행거리60,000 km

Overview

The Oil Change Calculator recommends engine oil change intervals based on driving conditions (city/highway), annual mileage, and oil type (conventional/synthetic). Regular oil changes are essential for maintaining engine performance and longevity.

Formula

Change Interval = Base Interval x Driving Condition Factor. Fully synthetic oil typically lasts 10,000–15,000 km or 1 year; severe conditions (frequent short trips, city driving) cut this to 5,000–7,500 km.

How to Use

  1. 1Select the engine type (gasoline, diesel, hybrid).
  2. 2Select the oil type (conventional, semi-synthetic, fully synthetic).
  3. 3Select your primary driving condition (city, highway, severe).
  4. 4Click 'Calculate' to see the recommended change interval in km and months.

Tips

  • Synthetic oil lasts longer per interval and can be more economical over time.
  • Frequent short trips, heavy stop-and-go traffic, and dusty environments qualify as severe conditions.
  • Regularly check oil level and color using the dipstick.
  • Diesel engines generally require more frequent oil changes than gasoline engines.
  • Follow the oil grade recommended in your owner's manual (e.g., 0W-20, 5W-30).

FAQ

Q. What happens if I don't change the oil on time?

Degraded oil increases engine wear, reduces fuel economy, and in extreme cases can cause engine seizure.

Q. What is the difference between synthetic and conventional oil?

Synthetic oil offers better thermal stability and lubrication, allowing longer intervals and improved engine protection. Conventional oil is cheaper but requires more frequent changes.

Q. Should I replace the oil filter at the same time?

Yes. Replacing the oil filter with every oil change is recommended. An old filter loses its ability to trap contaminants and can compromise fresh oil quality.

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