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5.0

Based on 240 reviews

20:27 03 Nov 25

Jeep Grand Cherokee Diesel, Dash error message said 'Service Exhaust System. Contact your dealer.'
I added the measure of CEM De-Carbonizer and went for a drive and the error message went away, Engine light went out, and the car is perfect.
It's often difficult to know if a product is doing anything. I'm seeing results.

GaryH 1959

04:08 23 Oct 25

I have been using FTC decarbonise and CRD cleaner in my 2014 renault trafic for 12 months now approx 10000km. Can't believe how clear the transparent fuel lines are now. I have also changed fuel filter and never have see it so dirty from collecting the deposits, see photos. Great product.

I've just started using Aw10 ant-wear in my oil changes.

Rob Heath

10:36 21 Oct 25

I used Effective Maintenance products today, oil flush, decarboniser and diesel fuel treatment. I have never seen my average litres per 100 below 9 on my 2012 Mitsubishi Pajero, within a couple of hours of driving the best I saw was 7.5 l per 100 k’s.

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