Premium Double Filtered Pure 2-EHN Cetane Booster with 100% Ester Lubricant. Diesel Additive to Improve Cold Start, Reduce Engine Knock and Improve Performance. 8 x 220ml

Family use this in Renault, Peugeot and Range Rover diesels. Smoother and quieter engine, much quicker acceleration and more mpg. Fill up with cheapest diesel, pour 100ml in Renault & Peugeot or full bottle in Rangey’s massive tank. Sit back and enjoy the ride!

This has made a remarkable improvement to the pulling power of my van. I can also see an improved mpg.

Excellent product

Tried it in a Freelander 1 and an Audi definitely got better throttle response and more mpg

COLD START: bought this mid-winter and it only took 2-3 days for engine to start without any struggle at – 3-5°C in the morning. Granted, winter in the UK isnt that cold, but even the momentary “hesitation” is gone.DIESEL KNOCK: It took me a couple of weeks to start noticing the diesel knock isn’t as loud, and by the time I had to refill the tank the knock was gone completely.FUEL EFFICIENCY: I can’t honestly say I’ve noticed any difference. If there is, it’s neglectable, at least in my case. But the engine certainly feels and sounds better since I’ve started using the additive; has slightly better pull, especially on low revs.USAGE: recorded using a 450:1 ratio(110ml, or half a bottle for my 60l tank, 50-55 really as its never empty). You will want to pour the additive in the empty tank first and then the fuel for better mixing/results.

8 point boost to cetane of your current diesel, help remove moisture from fuel, removes built up carbon and unspent hydrocarbons. Burns cleaner that normal diesel, full bottle added to 80 litres of premium diesel in 2011 BMW X540D tank. I drove nearly 500 miles from Glasgow to Reading, to Heathrow, back to Reading and still had over quarter of a tank left.Extra power, cleaner burn, reduces carbon build up, gives engine health more longevity. Small price to pay for a great product.

Put it in tank when filling up. Felt nothing and thought I'd been scammed. After about 15 minutes drove it just suddenly was going too fast my foot had to be more gentle on the pedal. The car feels smoother and quieter. Definitely works. I can't comment on economy yet, as haven't tried it on a standard route comparison.