cj10jeeper said:
Cynic that I am I d't believe that modern engines given a decent run, from time to time and regular fluid changes actually benefit from any such treatment.
I'm sure Ed takes a nice commission on each and every piece of kit he manages to demonstrate on their shows.
By the anount of carbon and wet oily sludge that I got out of my old 320d's intake and egr valve I would say that they do need cleaning out every os often. I cant comment on the product but my car did 2 520 mile motorway runs out of every 4 weeks and had its fluids changed on time or early for its entire life.
I removed the parts and cleaned them with petrol and a washing up brush. It cost £3 and 2 hours of my life. It made a noticeable diffrence too both to power and ecconomy.
Also the DPF was so full of soot that my car was beltching black smoke every where. After removal I had an mot and the test could not pick up a reading so the tech doing the job had to hand right "emissions to low for tester to pick up"