It is a 3 stage treatment so you need 3 tubes which puts the cost around £45, but don't let that put you off. My car is a saab 9-3 1.9 tid, it took about a week to work after the first treatment by which time I'd forgotten I'd added it; my car started purring very silkily, I then remembered the treatment and it's been purring ever since. This review is based on the one treatment, I've just as added the second and will do the third in a couple of weeks. If it lasts as long as it claims, it'll out live my car which will make the £45 very very reasonable.
Verified purchase: Yes | Condition: New
Used for years on a number of cars. Very easy to use.. much better than old tubes. I think it helps engine never had any problems
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Engine noise and performance improved slightly
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I HAVE TO TRY IT AND IF IT IS GOOD I WILL BUY FOR MY OTHER C
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Good quality
Verified purchase: Yes | Condition: New
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