STP® Emissions Reducer – Petrol is a simple solution designed to help vehicles pass their emissions test. In most of Europe, vehicle emissions are tested as part of their annual/bi-annual vehicle safety check. In some countries, vehicles with high emission levels are deemed as not roadworthy. STP® Emissions Reducer- Petrol is designed to clean and keep clean components that affect emissions. Simply add to your fuel one tank before your scheduled emissions test.

Simply add to your fuel one tank before your scheduled emissions test.