STP Engine Stop Leak for Petrol & Diesel Engines 300 ml, Improved Concentrated Formula, Conditions your Engine and Prevents Minor Oil Leaks, Mechanical Car Cleaning Products, Made in the UK

• What You'll Get- 300 ml Engine Stop Leak for Petrol & Diesel
• Helps prevent minor oil leaks
• Compatible with regular and synthetic motor oils
• Conditions engine seals without clogging filters or inhibiting flow
• Will not harm oxygen sensors or catalytic converters

STP Engine Stop Leak is formulated with a special agent to renew polymer seals and gaskets damaged by the heat of normal engine operation, which can otherwise result in oil leaks and expensive mechanical work. STP Engine Stop Leak will also increase the protection offered by the existing engine oil.