We value your testimonial, any comments positive or negative will be passed on to members of staff or service agents mentioned, we will also take on board your opinions to enable us to improve the network and how we operate. A selection of testimonials will be listed here. Please take some time to read some of these. Links to letters or websites may be included.  If possible please include the make & model of your vehicle and the name of the service agent and town in which they/you are based.

"I bought my car 4 months ago (10 years old) and it’s been serviced by Main dealer it’s whole life on time I had my car terra cleaned not long ago and it’s definitely made a difference all the way through the Rev range and big difference low end range plus it’s noticeable quieter on idle my engine is direct injection so had the extra bit done too so the bits where the fuel don’t touch got a clean, I was sceptical like most but I was proved wrong it’s a great service"

Posted By:

Lee Barnes

Honda Accord 2009 i-DTEC ES GT

"Just had the Terraclean treatment. Spot on. IMMEDIATELY NOTICEABLE improvement in MPG, quietness at idle, quietness when driving, smoother power delivery. They say you buy the person and not the product. I'd already researched the effectiveness of Terraclean - & the guys at Merlin were friendly, skilled and knowledgeable. I will certainly be using them again. Thank you."

Posted By:

Web Link:

Chris Sadler

Click Here

2005 Mitsubishi Lancer Evo 8 260 Euro

"My Mitsubishi Lancer Evo 8 failed the MOT emissions test with a co of 0.67 when the limit is to be below co 0.20. Using Wynn's Emission Reducer poured into the fuel tank,the co reduced by over 50% to co 0.31 which was still a failure as it was above the co 0.20 limit. Had a Terraclean system clean done,and the co dropped from co 0.28 before the clean,to co 0.05 after the clean!.What a result,the car passing the MOT with emissions equalling a new car. Many Thanks."

Posted By:

Allan Thomson

VolvoC30 R 2.4 auto Triptronic

"My second engine treatment, after chatting to Martin at your head office I was recommended to try GR8 Motors LTD in Slough , I sent an email and was asked could I drop in to day said yes, On arrival I was shown where the office was with hot drinks etc, I kept popping into the workshop to see how the chap was getting on all good, the total operation took around one hour on completion the car was facing the right way out for me just to drive out, at all times I was feeling reassured by the manger the garage is a very professional setup and all the staff are the same , on the way home on the motorway I could feel the engine was more responsive very good job guys thanks. "

Posted By:

Ian Milne

Ford Fiesta 1.4 TDCi Titanium (2010)

"I had a Terraclean carried out on my 60 plate Ford Fiesta 1.4TDCi (with 72.5k miles on the clock) a few weeks ago, and what a transformation it has made. The engine has over the past year got rougher and rougher, with a slight drop in fuel economy and power. Although it passed its recent MOT without anything coming up on the diagnostic machine, I knew something wasn't right. The engine now runs like it was new again. Power and fuel economy, and even refinement, are all back up. Would highly recommend for any diesel engine car."

Posted By:

Stuart Haig

Add a Testimonial

Find a Local TerraCleanTM Service Centre

Complete details to get INSTANT dealer information

FULL Postcode

Your Closest Dealer

Click "Book" to place a booking with this dealer.

Book a TerraCleanTM

Become a TerraCleanTM Service Centre


01670 706203

Text INFO and Postcode to


Loading Webchat...