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For Consumers

Whether you drive a diesel car or operate a big rig, you can rely on the diesel additives from Power Service for year-round engine performance improvement, trouble-free winter operation and proper fuel tank hygiene. We are the diesel experts and any size diesel engine will run better with Power Service.

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For Industries

From some of the largest fleets in North America to large construction and mining operations, commercial industries rely on Power Service diesel additives to provide year-round diesel engine performance improvement, trouble-free winter operability and proper fuel tank hygiene.

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Learning Center

Find articles, videos, and helpful tips for maintaining your diesel engine. You'll also find product information, useful resources, and advice from our expert team.

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You guys are the best!!! Saved me numerous hours of hard labor in cleaning out my Diesel tank. I recently purchased a 20 year old boat which had a 140 gal fuel tank filled with thick slime and varnish. I was sure I was in for days of hard labor to clean it out. Bought a couple of bottles (32 oz) of CLEAR-DIESEL, this stuff is magic, it’s like Windex for diesel slime, sprayed it on, the Slime/varnish melts off. I can’t tell ya how much time I saved. Did the whole job in 5 hours.


A Green
Marblehead, MA

Have been using Diesel Kleen since my 2007 Dodge 2500, 5.9L Cummins was new. Injectors replaced at 311K miles; dealer could not believe they lasted that long. Engine runs like new. Truck has 365K miles on it. Averages 20MPG on the freeway. Great product. Thank you.

Patrick Florenti
Antioch, California

I’ve been using Diesel Kleen in silver can in my Dodge 2500 Ram no engine problems since the truck was brand new. No sediment build up in fuel filter fuel and mileage runs from 18.5 miles per gallon up to 20.0 per gallon. I stand by this product and never use any other additives but Diesel Kleen truck has 275000 miles on it and engine has never had a wrench turned on other than routine maintenance.

Michael Yonn
Ridge Spring, SC

Use Diesel Kleen every tank since I purchased truck with 196,000 miles several years ago. Got 322,000 on original injectors before changing them out. I credit the use of Diesel Kleen along with good filter and maintenance. Thanks Power Service for a great product. Cummins may endorse it, but so do I.

John Andrews

I just realized I have lost 25% on 5 years of fuel expenses on my 3/4-ton dodge! For the last five years I have been getting 16mpg (hand calculated). Spoke with ‘Cleetis’ who runs his cummins for work, and he recommended Power Services–dumped 100gal treatment into 30-ish gal. Drove 300mi today and filled up. Hand-calculated and 20mpg!!!!!!!!!!

Thought it was only for powerstrokes… wow—thanks!!!!

Eric P
Sav, GA

Alright, like Mike, Poconos, PA said, this stuff is pixie dust. I put it in my ’12 F250 and 3 miles later I noticed a smoother idle. Can’t wait to see any MPG improvement.

Jon Verwoest
Antelope, CA

I have been using Power Service products in my cummins Engines for the last 8 years. This product works great. If you gel up, the Emergency 911 formula works miracles literally. The silver bottle adds around 2 miles per gallon to my economy when I use it consistently. The idle is much smoother. I would and do recommend these products to all my family and friends that run diesels. And if you live in sub zero climates, always have the 911 with you.

Robert Moody
Lincoln ME

I bought this truck with 20K miles on it within two days of owning it, I added diesel Kleen and within 5 miles I noticed a difference. I could hear the turbo more and the truck smooth out. Now I use it every fill up religiously. I have had 0 problems. The truck now has 82K mile and runs better than new.

Anthony Mahon

I have been using the power service products since I have owned my first diesel truck. I bought a 1999 Ford 7.3 with 250,000 miles on it. When I bought it, it was running a little rough. Rough idle, bucking, etc. I was new to the diesel world and wasn’t familiar with most of the additives at the time so I picked up a few different ones. I ran through two tanks of others and didn’t notice any difference. What happened next is what has made me a life long power service fan. I added some of the grey bottle to the tank and within 20 miles I noticed a noteable increase in performance. After the full tank had been run through I was seeing increased power, better fuel economy, and no more rough idle or sputtering. Many years later and I am still using the power service products in my other diesel trucks. Most recently in my 2012 Ram 2500. When I bought the truck I was averaging 18.2mpg and now after adding some of the grey bottle I am getting 19.5mpg. This stuff may be a little pricy but in my opinion it almost pays for itself in the fuel economy gains. Would strongly recommend this in any diesel application!

Chris Rodriguez
Twentynine Palms, CA

Since day one have been using Diese Kleen and at 345,000 miles injectors are way past life expectancy so, I installed a new fuel pump and new injectors I am very satisfied with Diesel Kleen

James Adair
Houston, TX

Performance, Winterization, and Fuel Tank Hygiene features
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