Knowledge
How often should you change engine oil?
Follow the grade on the filler cap or in the manual. On Nigerian roads, change it sooner than a manual written for open highway.
A practical interval
Many petrol cars on mineral oil, driven in Lagos or Abuja traffic, are happier at about 5,000 km. A car that does long highway runs on a quality oil the maker specifies can often go further, toward 8,000–10,000 km. Those are guides, not a promise. If the oil on the dipstick is black and thin, or the engine is louder than last month, do not wait for the number.
Heat, short trips and dust all age oil faster. A car that idles for an hour on the Third Mainland has worked harder than the odometer suggests.
Grade before brand
20W-50 is common on older engines here. Newer engines often want a thinner oil, such as 5W-30. Using a thicker oil because it is on the shelf can be the wrong kindness. Bring the cap, the manual, or the VIN and we will match a Shell, Castrol or equivalent that is actually specified.
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