Nitrox Max Blast Diesel Fuel System Additive, 300ml

Very effective indeed. Car is running a lot better and you can feel the difference almost immediately. Poured it in and then ran the engine for a few minutes then took a car up a dual carriageway and the car has never felt so nippy and it’s only a Skoda lol. very happy with the product and will defo buy again. Thank you

With products like this, where objective effectiveness is hard to prove, one relies on anecdotal evidence, because as humans we are always looking for a rationale and justification. Sometimes you have to take a leap of faith. I've used similar products in the past with mixed results (he says subjectively), so going on a VW engineer's word that it works, this was all I needed to relieve myself of £20. The KM/L or MPG on my 14 yr old VW Bluemotion Golf, (with 125,000 miles or 195,000 kms on the odometer) over the last year has declined steadily by about 12%. With no typical symptoms as to why, ie neglect, a change in driving behaviour, tyres, binding brakes, poor fuel quality, I thought this would be worth a punt. Used as directed, and using high quality Shell fuel, as opposed to supermarket quality, I noticed an almost immediate change in the performance response, fuel economy and smooth running. Now, before all the nay sayers jump in, I am aware of the psychosomatic effect this might have been playing out! The results, after a full tank were that the original fuel economy had returned. Now, since that first treatment, I have had engine trauma. One of the injectors was spat out of the top of the engine. Thankfully, having heard odd sounds (a growing ticking noise), I drove straight to my local garage and as I entered the forecourt the engine ground to a halt with burnt oil coming out from under the bonnet. I thought the engine was history, but the garage assured me it was fixable. Had I been driving down the highway at 70mph it would have been different story. Once fixed and £600 lighter for it, the engine ran normally for about 2 weeks. About 4 days ago I started hearing diesel knock and pinking. The issue has gradually worsened. The car is going into the garage tomorrow for a service and an MOT, so hopefully, armed with this knowledge, the garage will find out the problem. The original injector issue may have caused oil seal problems, compression issues, inbalance in the fuel delivery, any one of a number of things. Hopefully, it'll be straight forward and not too expensive! Why am I telling you this? Well, if you have a similar issue, hopefully, this description will help. Whether the fuel additive has contributed to an already existing issue with the injectors, it's impossible to say.

Leaking, package soaked, had to return which is not good if you read instructions about handling and care. No option but to return wrapped in cling film. Not sure how much wad left. Poor. Disappointed 😞

I have tried it in the past, runs to the South Coast from the Midlands so no jogging around, just a nice steady 240 mile run on motorways (with Shell diesel, not supermarket stuff). Didn't seem to make any difference (still a sloth tailpipe - as it was before the run. I added another bottle for the same high speed run back home, again disappointed, no increase in MPG, tailpipe still the same.