This keeps your injectors clean longer and gives you better performance results. However, there’s no doubt that a product you need to add at every fill-up will cost you more in the long run, and it’s a bit of a headache to remember to add it every time.

The Best Diesel Engine Cleaner - Car Magazine Products The Best Diesel Engine Cleaner - Car Magazine Products

If you want the best possible results this is a crucial part of the process. Every product treats a different amount of fuel, and if you don’t use enough or if you use too much you won’t get the results you want. It can be quite hard to diagnose where the deposits are building up in your engine, so for most applications, a generalised cleaner will probably be better. Because while you might save a bit of money the first time you buy it, there’s no doubt you’ll spend more in the long run compared to other products. But it’s still better than using no fuel additive at all!

PACKAGING

MOT coming up? If you're worried about emissions, then a catalytic converter cleaner could make the difference between a pass and a fail. What's the best diesel car ever? JLM’s Extreme Clean’s thorough cleaning process restores the entire turbo and the diesel particulate filter, as well as the intake valves, EGR valve and injectors. That’s a pretty big deal since that lines you up with most service intervals if you’re using synthetic oil. It’s also a big deal considering that a single container of BG 245 Premium Diesel Fuel System Cleaner only treats 15 gallons of fuel, and it’s about the same price as a product that treats twice as much. A lot of the plastics – particularly those used for the main part of the dash and the door cards – feel cheap, but this is made up for by the infotainment, which is impressive considering the Duster’s low price. In the Extreme SE, plus the Comfort and Prestige-trimmed cars, it is a reasonably responsive eight-inch touchscreen and includes Android Auto and Apple CarPlay connectivity.

Best Diesel Fuel Additives - MotorTrend

Using Hot Shot’s Secret can save you a ton of money in expensive repairs, making it a product that really pays for itself in the long run. Our only complaint outside of the price with Hot Shot’s Secret is that you have to measure it out to get the right ratio in your engine. Try to repeat similar cycles a few times while driving on the treated diesel to achieve the maximum result.And of course, all this cleaning has outstanding results you can see. First, when you go to start up your diesel on a cold day, you’ll notice outstanding performance. Second, after long trips, you’ll find that you’re making fewer trips to the gas station. I'm championing the Alpina D3 S (in green, obviously) and the utterly stupid but interesting Audi Q7 V12 TDI. Not only will you get a clean fuel system, but you’ll get much better engine performance compared to most other fuel additives! While BG 245 Premium Diesel Fuel System Cleaner might not be the biggest name in the industry, that doesn’t mean it’s not an excellent choice for your vehicle. For starters, it lasts up to 10,000-miles. That’s twice as long as the next closest product on our list.

Diesel Products | Diesel Engine Products Hot Shot Diesel Products | Diesel Engine Products

Lucas Oil is one of the largest names in the additive industry, but that doesn’t mean they should be your go to. To be clear, they’re not a bad choice, but we don’t like that you start to notice performance drop-offs after just 1,500 miles.Liqui Moly Pro-Line Diesel Cleaner is a German product that does a great job at cleaning up diesel engines. It’s an extremely affordable product that improves your fuel efficiency and gives you a quiet ride. While it’s certainly debatable, we think that the best choice out there is the Chevron Techron D Concentrate Diesel Fuel System Cleaner. It’s an outstanding mix of price and performance for diesel engines. It’ll give you the results you’re looking for without spending a ton of money! Buyer’s Guide

Extreme SE 2022 review | Auto Express New Dacia Duster Extreme SE 2022 review | Auto Express

Another perk that this cleaner offers compared to many other additives is that it lasts for up to 5,000 miles. While it’s not the longest distance out there, it’s far longer than most products that need a new treatment after 3,000 miles to stay effective. So, while we can’t deny that it does a great job, we can’t help but send it down to the middle of our list since there are additives you can every 3,000 to 10,000 miles and get similar – if not identical – results.But it will help improve your fuel efficiency, clean the injectors and keep them clean, and it will help improve your emissions.