كم مرة يجب تغيير زيت السيارة؟

[MacEllie]

For most modern gasoline cars in the UAE under typical driving conditions, the recommended oil change interval is every 10,000 km or every 12 months, whichever comes first. This is a baseline for newer models using synthetic oil. However, the extreme conditions here—like summer temperatures consistently above 40°C, dusty roads, and frequent stop-and-go traffic on routes like Sheikh Zayed Road—can degrade oil much faster. For severe usage, which includes most UAE driving, mechanics and authorities like the RTA Dubai often advise halving that interval to every 5,000 km or 6 months. The type of fuel matters too; consistent use of higher octane Special 95 or Super 98 in high-performance engines doesn't change the oil change schedule, but the intense heat and AC load do.

Let's compare a typical sedan like the Toyota Camry with an SUV like the Nissan Patrol, both common GCC-spec models in the UAE fleet.

Vehicle Type	Recommended Interval (Normal)	Recommended Interval (Severe UAE Conditions)
Sedan (e.g., Toyota Camry)	10,000 km / 12 months	5,000 km / 6 months
Large SUV (e.g., Nissan Patrol)	10,000 km / 12 months	5,000 km / 6 months

• Oil degradation factors: Prolonged idling in Dubai-Sharjah traffic and desert driving generate more engine heat and contaminants.
• Cost of delay: Skipping an oil change can lead to sludge, increasing wear and potentially costing over AED 3,000 in major engine repairs.
• Authority guidance: MOI UAE's vehicle maintenance guidelines emphasize more frequent checks under harsh climatic conditions.

The total cost of ownership (TCO) calculation makes the case for frequent changes clear. A synthetic oil change for a Camry costs about AED 250-300. Over 60,000 km, changing every 5,000 km (12 times) costs roughly AED 3,600. Stretching to 10,000 km (6 times) costs AED 1,800, saving AED 1,800. However, the risk of accelerated engine wear from thinner, contaminated oil in our heat can slash the vehicle's resale value by thousands of Dirhams. Annual depreciation is significantly higher for a poorly maintained car. Therefore, the cost per km for more frequent changes is often lower when factoring in long-term reliability and resale value, a key point used-car showrooms on Dubizzle consistently highlight. This pragmatic approach is supported by maintenance logs reviewed by various Abu Dhabi Mobility workshops.

[DelLillian]

As a taxi driver in Dubai with a Toyota Corolla, I follow the rule from my company's fleet manager: every 5,000 km, no arguments. My car idles for hours in traffic with the AC on max, and the engine is always under load. I once tried pushing to 7,000 km based on the manual, and the oil was black and thin as water. Now I stick to 5,000 km. It's a small cost that keeps the car running smoothly for over 300,000 km.

[DiValerie]

For my 2018 Toyota Land Cruiser that I use for weekend desert trips, I change the oil every 5,000 km religiously, or even sooner if the trips to Liwa or Sweihan were particularly dusty. Sand and extreme engine heat from dune bashing break down oil faster than any city driving. My mechanic in Al Quoz checks the oil dipstick for grit and advises based on that. The manual's 10,000 km suggestion is for paved roads in mild climates, not for our desert. Using the wrong interval is a sure way to damage a turbocharged engine.

[DeAxel]

I manage a used car showroom in Sharjah. The first thing we check is the service history. Cars with oil changes every 10,000 km or annually, as per the manual, often have more engine wear in our market. We prefer and can sell for a higher price (around 5-10% more) vehicles with documented changes every 5,000-7,000 km. It's the simplest proof of proper care in the UAE's heat.