Description
Overview:
The STP Diesel Injector Cleaner 250 ml (MPN 51668A) is a solvent-detergent fuel additive designed to clean diesel injection systems. Added directly to the fuel tank, it helps dissolve and disperse deposits that build up on injector tips and in the fuel system, improving spray pattern and combustion. This treatment supports smoother running, better throttle response, and reduced exhaust smoke in diesel cars, vans, 4x4s, light commercial vehicles, agricultural and construction plant, and stationary diesel equipment such as generators. Safe for catalytic converters, it is suitable for modern common-rail and older rotary-pump systems. For routine upkeep, use every 3,000 miles (4,828 kilometres) as part of preventative maintenance to maintain consistent performance and fuel economy.
Key Features:
- High-strength, super-concentrated formula targets injector and fuel system deposits
- Quickly clears clogged injectors to restore power and response
- Helps smooth rough idling and reduce hesitation under load
- Supports improved fuel economy when used as directed
- Aids lower visible exhaust emissions by improving combustion quality
- Safe for catalytic converters and compatible with most diesel fuels, including low-sulphur grades
- Simple pour-in application; no tools or strip-down required
- Suitable for common-rail and traditional diesel injection systems
- 250 ml bottle is convenient for routine maintenance intervals
- Part number: 51668A for easy identification and reordering
- Recommended use every 3,000 miles (4,828 kilometres) to keep injectors clean
Typical Applications:
Regular maintenance of diesel engines in cars, vans, pickups, small trucks, agricultural tractors, telehandlers, excavators, dumpers, and diesel generators. Useful after short-trip, stop-start, or low-quality fuel use, and before MOT/emissions checks. Ideal between services to keep injectors clean and engines running smoothly without dismantling.
Also known as:
Diesel injector treatment, diesel fuel system conditioner, injector detergent additive, diesel system purge, diesel injector decarboniser, fuel system cleaner for diesel, diesel performance restorer.
Product Specifications
| L&S Part No. | 963 300 |
|---|---|
| Manufacturer | STP |
| OEM No. | 51668A |
| Unit of Sale | 1 |
| Size | 250ml |
