Description
Overview:
STP Smoke Treatment 450ml is a petroleum-based engine oil additive formulated to help reduce visible blue exhaust smoke and slow oil consumption in worn engines. The high-viscosity blend works with engine oil to improve sealing around piston rings and valve guides, supporting compression and reducing blow-by in older petrol or diesel cars and light commercial vehicles. Supplied in a 450 ml bottle for a single service application, it mixes readily with warm engine oil and helps stabilise viscosity under high operating temperatures. Suitable for use when topping up or after an oil change, it offers a simple way to support smoother running between services. Manufactured by STP, a long-established automotive brand. Manufacturer Part Number (MPN): 865 516.
Key Features:
- Helps cut blue exhaust smoke linked to oil burning in worn engines
- Supports reduced oil consumption between services
- High-viscosity additive to aid piston ring and valve stem sealing
- Compatible with most mineral and synthetic engine oils
- Suitable for petrol and diesel engines in cars and light vans
- Simple pour-in use; no special tools required
- Can help stabilise oil viscosity at high operating temperatures
- 450 ml bottle sized for a typical passenger vehicle service fill
- Useful for higher-mileage vehicles showing increased oil usage
- From STP, a brand known for practical automotive maintenance products
Typical Applications:
Used on vehicles that show blue smoke at start-up, during acceleration, or when oil consumption has increased between services. Suitable for everyday cars, older runabouts, taxis, and light commercial vehicles. Add to warm engine oil after an oil change or during a top-up, then monitor oil level and condition as part of normal maintenance.
Also known as:
Blue smoke reducer, anti-smoke engine oil additive, oil burning fix additive, stop smoke oil treatment, viscosity improver for worn engines, ring and valve guide sealing additive, oil thickener for aging engines.
Product Specifications
| L&S Part No. | 865 516 |
|---|---|
| Manufacturer | STP |
| Unit of Sale | 1 |
| Size | 450ml |
| Key Features | - Reduces blue exhaust smoke in worn engines - Supports reduced oil consumption between services - High-viscosity additive aids sealing in engines - Compatible with mineral and synthetic oils - Suitable for petrol and diesel engines |
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