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Recommended to me by a mechanic and this was the best deal for me on eBay. Product seems to work fine but only use it every two months or so. Overuse can be detremental. It cleans the vital parts of the engine to ensure continued efficiency.It is NOT meant to be a replacement for the regular service that any engine needs
Verified purchase: Yes | Condition: New
Bought from this company before,always very fast with deliveries, Comma products are always excellent value for money and this one really does work,mpg in my car went from 55 to 67 when I first used it and still does.We use it on all three diesel cars with no worries.
Verified purchase: Yes | Condition: New
Have to say, Didn't think it would work. I got 6 bottles, and glad did. By 5 and 6 could really notice the difference in start up and running. Much less smoke in both situations. With that also came better throttle response. the car was defiantly more eager to accelerate with less foot down. Given that, I think i'll be saving on fuel also. Although not sure how much just yet. Intend to use this going forward every two to three fill ups to keep the benefits achieved and keep the fuel system tip top. Try it. My vehicle was sluggish, Smokey and a pain in traffic. Now a lot smoother and even sounds better. Good move.
Verified purchase: Yes | Condition: New
Engine runs smoother and cleans up emissions nicely. Also improvement in economy which offsets the cost of the product. Good stuff.
Verified purchase: Yes | Condition: New
Yes it works and you get your money back in the extra miles to the gallon. I do use this type of cleaner regular.
Verified purchase: Yes | Condition: New
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