








Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to Ireland.
โก Ignite your dieselโs potential โ smoother rides, cleaner emissions, smarter savings!
HYDRA EHN-99 is a 99% pure 2-Ethylhexyl-Nitrate diesel additive designed to boost cetane ratings by 4 to 8 points, improving combustion efficiency and cold starts. It reduces engine noise, black smoke, and particulate emissions while enhancing fuel economy. Suitable for all diesel fuels including biodiesel, this 1L treatment covers up to 1000L of diesel, making it a cost-effective performance enhancer trusted by professionals and eco-conscious drivers alike.










| ASIN | B01A0VGGGA |
| Best Sellers Rank | 82,499 in Automotive ( See Top 100 in Automotive ) 358 in Fuel Systems |
| Brand | HYDRA |
| Customer Reviews | 4.4 4.4 out of 5 stars (87) |
| Date First Available | 31 Dec. 2015 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Manufacturer | Hydra International Ltd |
| Manufacturer part number | 2-EHN-5055816635330 |
| Manufacturer reference | 2-EHN-5055816635330 |
B**N
Works...not a gimmick..
Works...engine sounds smoother...and I think more economy achieved as a result of using it.
G**E
Boosts your MPG
Keeps my MPG high and reduces the need for DPF regeneration.
M**J
Improved mpg...
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.
W**E
Excellent stuff
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.
K**H
Works well.
Really does the job.
A**R
Brilliant
Excellent product
N**R
HMMM!
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.
K**4
Helps the old girl run smoother
In the past Iโve bought other products for my old VW camper, but after reading the reviews, I decided to try this product. Itโs been really good, itโs a little smoother starting and seems to run smoother too
Trustpilot
3 weeks ago
2 months ago