A quick piece of news for you. The UK’s Kwik-Fit company is offering a green car service called “Go Green”. For an extra fee they will also perform extra checks and some enhancements on your vehicle to reduce it’s emissions.
They will check for improper emissions and add a treatment to your fuel tank that cleans the engine and improves efficiency. Part of the £29 fee (£10) also is donated to the Carbon Neutral Company.