Wynn's Extreme Diesel System Cleaner - Deep Cleaning Engine Treatment - Restores Fuel Economy & Reduces Emissions - Prevents Turbo, EGR Valve & DPF Issues - 325ml

I recently tried the Extreme Diesel System Fuel Injector Cleaner in my car after noticing it was feeling a bit rough during acceleration. I must say, I'm impressed with the results.After using this cleaner, the roughness disappeared, and my car's performance noticeably improved. It felt smoother and more responsive, especially during acceleration. Additionally, I noticed a slight increase in fuel efficiency, which is always a plus.What I appreciate most about this product is its effectiveness. It did exactly what it promised, clearing up any issues related to fuel injectors and restoring optimal engine performance.Overall, if you're experiencing similar issues with your diesel vehicle, I highly recommend giving Extreme Diesel System Fuel Injector Cleaner a try. It's a simple and cost-effective solution that delivers tangible results.

Bought in the hope of solving a minor over-revving issue on a Kia Carens, when going from 2nd to 3rd gear. It worked first time after just a few hours! Superb product and a world away from Redex. Highly recommended.

Will put it in our 2010 Fiesta 1.6TDCi tank on next fill-up of around 40 litres of diesel.It is not easy to know if it does any good, but will probably stop injectors from sticking open with varnish on the needles due to age and high mileage.

Put this in my 3.2 Ranger just as a little bit of preventative maintenance. I was actually surprised that there was quite quickly a noticeable difference in performance. Made acceleration smoother and got rid of a flat spot that I’d learned to live with. Will definitely use again

Right ok I don't write many reviews but I thought this deserved a review to help people who may need to get this. So I noticed my car was running very sluggish and then I had a check engine light come on, anyway the code was P0401 which points to the EGR valve having an issue, the car felt awful and was running constantly in limp mode and reducing the power, i thought oh no a massive expensive job coming here so I had a look around to see if I could fix it myself and came across a review to buy this and try it first, why not at this price it was well worth the gamble and did it deliver!! I added the full bottle to a half tank of fuel by the time I got down to around a quarter of fuel left I could feel the car performing a lot better and wasn't feeling sluggish anymore, I didn't clear the check engine light but it just went off on its own and the car feels great, so yes I highly recommend this stuff if your having the same problem or you just want to get your car feeling and performing better.

A great product. I have a 18 year old Chrysler 300C. I was advised to use this about five years ago. I have never looked back. My car loves and I love it. It seems to have a made a real difference. I don’t do a lot of mileage but I add a full bottle to a full tank of fuel. I make sure I never run out and I always carry a bottle in the car just in case I need to fill up.

I honestly can’t tell you if it made any difference on my car. I’ve used it and it’s no quieter than it was before… that said my car is a high miller and regular use of this product may be of benefit.Good value for money if you what to used on a reoccurring basis.

The product 'should' be the same wherever you buy it. Had a fuel problem on my Land-rover a few years ago and the garage/mechanic advised this (he did not specify the brand) type of product. The issue was that the Land Rover was struggling to start, and struggled to get up to 50; then started spluttering over 50 (this went on for several weeks). I put this fuel system cleaner in with 20 litres of diesel and went for a long drive. The vehicles response initially hadn't altered! Then I switched the engine off and the vehicles computer reset and the problem was solved. Now I put a bottle through the fuel system every year before the MOT (that date is just a reminder for me) and have been driving trouble free since. If it's the first time you have used this, I might suggest checking with your mechanic first, and then put it in with your fuel, drive normally for a few miles (20-30 miles) to get the vehicle up to normal operating temperature, then, as you accelerate (e.g. when joining a motorway) you might notice a bit of smoke coming from the exhaust as the system cleaner does it's job. I'm no mechanic, but I wouldn't advice leaving this in your vehicle for too long (I put it in and take one or two long drives over a couple of days until the 20-30 litres of fuel has gone, then refill the diesel tank). The chemicals in this product dissolve the rubbish/gunk that has built-up in your fuel system, so it might not be good to keep fuel cleaner of this strength in the vehicle too long!