HYDRA EHN-99, 2-Ethylhexyl-Nitrate 99% Pure 2 EHN Performance Enhancer Cetane Booster Diesel Treatment Additive, 1L Treats up to 1000L.

Works...engine sounds smoother...and I think more economy achieved as a result of using it.

Keeps my MPG high and reduces the need for DPF regeneration.

Over a rolling 1000 miles my van used to average 52.2mpg. Started using EHN-99 and over the next 1000 miles I averaged 55.3mpg. Same 40 mile commuter route every day, similar speeds, weather and temperatures... vehicle runs smoother and can change up gear sooner without struggling. Only dropped a star as the dispensation method is messy and inaccurate.

HYDRA EHN-99: it does what it says on the tin. I actually get six miles per gallon more, and I get more mid-range torque too.

Really does the job.

Excellent product

would have provided more stars had the item actually bren delivered with 1 litre of the product!!! I thought when opening it it looked low so I measured it on very accurate scales and the total weight including all the packaging was 1008 gramms!!! 1000 gramms per litre of liquid and the small plastics filler nozzle weighed in at 13 gramms so the actual product was at even the higher estimate only around 930 mls of product!! Very annoying when you have paid for a litre yet been provided with less than this. I have ran several tanks and my mpgs have actually gone down even though I never change either my driving style nor route. This is worrying as now the rev gauge has started to fluctuate and that was after the second tank with this product. I chose a more expensive brand and up my mpgs went as well as stopping the rev fluctuations. I will most definetly not be using or recommending this product as it was a complete fail!!!

Was recommended to try this by a member of the Freelanders owners club, but in all honesty, I can't tell the difference! It may be doing some good, but I can't detect it.