In the UAE, for most GCC-spec petrol cars using Special 95 or Super 98 fuel, the correct spark plug gap is typically between 1.0mm and 1.2mm. This is slightly wider than the 0.8-0.9mm common in some European or North American specs, as engines here are calibrated for hotter climates and different fuel qualities. For instance, a 2022 Toyota Land Cruiser's 4.0L V6 engine specifies a 1.1mm gap, while a common Nissan Patrol's 4.0L V8 for the UAE market often uses a 1.0-1.1mm gap. Always refer to your specific vehicle's owner's manual or a trusted workshop with access to the Gulf Technical Committee (GSO) standards for the precise figure. An incorrect gap in our 45°C+ summer heat can lead to engine misfires during high-load conditions like climbing Jebel Jais or on the Dubai-Abu Dhabi highway, increasing fuel consumption by 5-10% based on common workshop reports. For popular sedans like the Toyota Camry or Nissan Sunny, the gap often falls within the 1.0-1.1mm range. The Abu Dhabi Mobility Centre and the UAE's MoIAT emphasise regular component checks adhering to manufacturer specs as part of preventive maintenance for vehicle safety and emissions control.
- For GCC-spec vehicles: gap is usually 1.0-1.2mm.
- Correct gap is critical for hot-weather performance.
- Refer to your vehicle's manual for the exact specification.
