Purpose and Specifications

STP Engine Flush 450ml is a cleaning additive designed to remove harmful deposits and acids that build up inside your engine over time. It works by dissolving sludge, varnish, and gum that ordinary oil draining leaves behind, helping to restore engine cleanliness and performance.

What it does:

• Neutralizes harmful engine acids that corrode internal components
• Loosens and removes sludge and varnish deposits from engine surfaces
• Frees sticking internal engine parts that may restrict movement
• Removes contaminants that regular draining cannot reach
• Protects new oil from contamination after the flush

Compatibility: Suitable for petrol and diesel engines. Works with mineral, multigrade, and synthetic oils.

Bottle Size: 450ml treats 3 to 6 litres of engine oil (one treatment per oil change).

When to Use / Replace?

Usage Frequency: Use with every oil change. One 450ml bottle is sufficient for one complete oil change cycle.

Application Process:

• Add the entire bottle to your used engine oil before draining
• Run the engine at fast idle for 15 minutes (do not drive)
• Drain oil while still hot and replace the oil filter
• Pour in fresh quality oil

Operating Temperature: Engine must reach normal operating temperature (typically 80-90°C) before and during the flush process.

Storage: Keep in a cool, dry place. The product is supplied in a 450ml ring-pull tin for single-use application.

Frequently Asked Questions

Q: Is STP Engine Flush safe for my engine?
A: Yes, when used according to manufacturer instructions. The product contains anti-wear additives to protect engine surfaces during cleaning. Always allow the engine to idle only (do not drive) during the 15-minute flush cycle, and follow the dosage guidelines based on your oil capacity.

Q: How often should I use engine flush?
A: Use one bottle with every oil change. Since most vehicles require an oil change every 5,000-10,000 km or every 3-6 months (whichever comes first), you would typically use engine flush at the same interval.

Q: Will this improve my fuel efficiency?
A: By removing deposits and contaminants, engine flush helps maintain optimal engine performance and can support better fuel efficiency. A cleaner engine operates more efficiently than one clogged with sludge and varnish.