STP

STP Engine Flush for Petrol and Diesel Engines, 450 ml

Name: STP Engine Flush for Petrol and Diesel Engines, 450 ml
Brand: STP

Engine Stop Leak £5.94

Engine Flush Selected

£5.09~~£5.99~~ Save 15%

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amazon.co.uk price: £5.09 (as of 03/10/2026 10:27 UTC) Details

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Product details

Engine flush for petrol and diesel engines

Engine flush for petrol and diesel engines, designed to help clear sludge and deposits before an oil change.

STP Engine Flush is a 450 ml treatment for petrol and diesel engines, intended for use as part of engine oil maintenance. It is designed to help remove harmful sludge and deposits, while also helping protect the engine during and after the flushing process.

What it is designed to do

Helps remove harmful sludge and deposits from the engine
Supports engine protection during and after flushing
Helps neutralise harmful acids
Claims to help stop or prevent minor oil leaks

Points to check before buying

Suitable for petrol and diesel engines only as stated on the product title
Use as directed on the label and follow the oil change guidance for your vehicle
Check that an engine flush is appropriate for your engine and maintenance routine before use

Made in the UK.