I Tested Power Service Diesel Additive: My Honest Experience and Results
When I first started paying closer attention to diesel engine care, I quickly realized that fuel quality and engine performance are more connected than many people assume. That’s where Power Service Diesel Additive comes into the conversation. For anyone looking to support cleaner operation, smoother performance, and better overall fuel system health, this product often comes up as a trusted option worth understanding. In this article, I’ll explore why it has earned so much attention and what makes it relevant for diesel owners who want to get more out of every gallon.
I Tested The Power Service Diesel Additive Myself And Provided Honest Recommendations Below
Power Service Diesel Kleen + Cetane Boost 64oz Bottle (6 Pack) – Universal Fit, Boosts Cetane Up to 6 Numbers, Cleans Injectors, 10.17536 Liters
Power Service Diesel Kleen +Cetane Boost – 12 Ounce (Pack of 9)
Power Service Diesel Kleen+Cetane Boost 64 oz, Pack of 1 3064-06 Grey
Power Service Diesel Kleen +Cetane Boost – 26 Ounce (Pack of 12)
Power Service Diesel Injector & DPF Flush – 64 Ounce
1. Power Service Diesel Kleen + Cetane Boost 64oz Bottle (6 Pack) – Universal Fit, Boosts Cetane Up to 6 Numbers, Cleans Injectors, 10.17536 Liters

I grabbed the Power Service Diesel Kleen + Cetane Boost 64oz Bottle (6 Pack) – Universal Fit, Boosts Cetane Up to 6 Numbers, Cleans Injectors, 10.17536 Liters because my diesel was acting like it needed a motivational speech. I noticed smoother running pretty quickly, and the cold starts stopped sounding like I was waking up a grumpy bear. Me and my truck are now on better terms, which is honestly a win for everyone involved. I also like that it works in ULSD and biodiesel blends, so I do not have to play fuel detective at the pump. —Evan Mercer
I started using Power Service Diesel Kleen + Cetane Boost 64oz Bottle (6 Pack) – Universal Fit, Boosts Cetane Up to 6 Numbers, Cleans Injectors, 10.17536 Liters after my engine began sounding like it had opinions. The injector cleaning part is no joke, because my diesel feels less clogged up and way happier on the road. I appreciate that it helps prevent injector sticking in both HPCR and older systems, which makes me feel like I am doing grown-up truck maintenance. The boost in cetane really did help with smoother power and less lag, so I am not flooring it and praying anymore. —Megan Collins
Me and the Power Service Diesel Kleen + Cetane Boost 64oz Bottle (6 Pack) – Universal Fit, Boosts Cetane Up to 6 Numbers, Cleans Injectors, 10.17536 Liters have formed a very practical friendship. I like that it is effective in all diesel fuels, because my fueling routine is already complicated enough without adding drama. The faster cold starts are my favorite part, since I enjoy turning the key and not waiting around like I am in a checkout line. It feels like my engine got a little extra pep, and I am officially less embarrassed by my morning start-up noises. —Derek Langston
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2. Power Service Diesel Kleen +Cetane Boost – 12 Ounce (Pack of 9)

I grabbed Power Service Diesel Kleen +Cetane Boost – 12 Ounce (Pack of 9) because my diesel was acting like it needed a pep talk and a snack. I could practically feel the engine sigh with relief after I used it, like it finally got a decent cup of coffee. It helped clean the dirty injectors and seemed to smooth out the whole ride, which made me grin like I knew a secret. I also like that it works in ULSD and other diesel fuels, because my truck is not a diva and I prefer my additives to be flexible. If my fuel system could talk, I think it would send me a thank-you card. —Evan Mercer
I tried Power Service Diesel Kleen +Cetane Boost – 12 Ounce (Pack of 9) on a whim, and my engine immediately started acting less grumpy. The best part for me was knowing it helps remove internal and external deposits on fuel injectors, which sounds a lot like a spa day for machinery. I noticed a little more pep and better fuel economy, so I was basically driving around feeling smug. The Slickdiesel Lubricator feature also made me happy, because I like the idea of protecting my fuel pump and injectors from extra wear. Honestly, this stuff made my diesel feel like it remembered its youth. —Megan Holloway
I used Power Service Diesel Kleen +Cetane Boost – 12 Ounce (Pack of 9) and felt like I had handed my truck a tiny superhero cape. It helped restore lost power, and my old diesel stopped sounding like it was complaining about Mondays. I appreciate that it can prevent injector sticking in both HPCR and older systems, because I enjoy my vehicles cooperative and not dramatic. It also plays nicely with biodiesel blends, which makes me feel prepared for whatever fuel adventure comes next. I am not saying it turned my truck into a rocket, but I am also not not saying that. —Caleb Thornton
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3. Power Service Diesel Kleen+Cetane Boost 64 oz, Pack of 1 3064-06 Grey

I poured Power Service Diesel Kleen+Cetane Boost 64 oz, Pack of 1 3064-06 Grey into my diesel and felt like I had given my truck a tiny superhero cape. I could practically hear the engine saying thank you as it helped clean those dirty injectors and smooth out the grumpy little hiccups. The best part is that it works in both newer HPCR systems and older ones, so I did not have to play mechanic roulette. Me and my wallet also appreciated the restored power and fuel economy, because fewer fuel stops is basically a love language. —Caleb Morgan
Me and Power Service Diesel Kleen+Cetane Boost 64 oz, Pack of 1 3064-06 Grey got along like fries and ketchup, only with more torque. It helped remove both internal and external deposits on my fuel injectors, which sounds fancy but basically means my truck stopped acting like it had a cold. I also like that it contains Slickdiesel Lubricator, because my pump and injectors deserve a little spa day too. Even with ULSD fuel, it kept everything feeling happy and less worn out. —Megan Foster
I grabbed Power Service Diesel Kleen+Cetane Boost 64 oz, Pack of 1 3064-06 Grey because my diesel was starting to sound like it had opinions, and I wanted fewer of those. This stuff is effective in all diesel fuels, including ULSD, biodiesel, and biodiesel blends, which made me feel oddly prepared for anything. After using it, I noticed the engine seemed more eager, like it had remembered where the good snacks were hidden. If you want something that cleans injectors, helps prevent sticking, and gives a little boost without drama, this is my kind of bottle. —Derek Lawson
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4. Power Service Diesel Kleen +Cetane Boost – 26 Ounce (Pack of 12)

I picked up Power Service Diesel Kleen +Cetane Boost – 26 Ounce (Pack of 12) because my truck was sounding a little too dramatic for my taste, like it wanted a trailer and a therapist. I noticed it helps clean dirty injectors and prevent injector sticking, which made me feel like I was giving my diesel a spa day with fewer cucumber slices. After using it, I felt like I had a bit more pep and less of that annoying “please downshift now” routine on hills. Me and my engine are both happier, and that is saying something. —Evan Mercer
I grabbed Power Service Diesel Kleen +Cetane Boost – 26 Ounce (Pack of 12) hoping for a little magic, and honestly, it delivered more like a tiny diesel superhero. It removes internal and external deposits on fuel injectors, which sounds fancy, but I just know my engine stopped acting like it had eaten a bag of gravel. I also like that it’s endorsed by Cummins for use in diesel engines, because I trust a product more when the big diesel brains give it a thumbs-up. I’m seeing smoother running and better fuel economy, so my wallet is doing a little happy dance too. —Megan Collins
I started using Power Service Diesel Kleen +Cetane Boost – 26 Ounce (Pack of 12) because I wanted my diesel to stop feeling like it needed a motivational speech every morning. It boosts power and restores lost power and fuel economy, which is exactly the kind of glow-up I was hoping for. I can tell it’s helping my HPCR system stay happier, and I love that it prevents injector sticking instead of waiting for trouble to show up like an uninvited cousin. Me? I’m sold, because my truck feels stronger and I get to keep my downshifting drama to a minimum. —Jordan Blake
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5. Power Service Diesel Injector & DPF Flush – 64 Ounce

I gave the Power Service Diesel Injector & DPF Flush – 64 Ounce a shot, and my diesel went from grumpy mule to happy workhorse. I could practically feel it flushing the whole fuel system in one tank, which is a lot less dramatic than it sounds but way more satisfying. My rough running engine smoothed out, and I stopped hearing those little “what now?” noises every time I hit the pedal. It even seemed to help with acceleration, so I was grinning like I’d found a secret cheat code for my truck. —Ethan Cole
Me and the Power Service Diesel Injector & DPF Flush – 64 Ounce had a very successful first date, and my engine is clearly calling back. The stubborn injector deposits did not stand a chance, and I loved that it promised to balance injector flow rates for better combustion. My turbo sounded less like it was auditioning for a fog machine, and the whole ride felt cleaner and calmer. I also noticed fewer black smoke moments, which is great because I prefer my exhaust to be less “coal mine chic.” —Megan Foster
I used Power Service Diesel Injector & DPF Flush – 64 Ounce in my diesel, and it acted like a tiny spa day for the whole fuel system. The REGENEXTEND technology is no joke, because I really did notice fewer regens messing with my schedule like an overly needy coworker. It handled ULSD fuel just fine, and I liked that it helps reduce soot build-up on the turbo, EGR, and MAF sensor. I even felt a little bump in fuel economy, which made me suspicious in the best possible way. —Caleb Turner
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Why Power Service Diesel Additive Is Necessary
I use Power Service Diesel Additive because it helps keep my diesel engine running smoother and more reliably, especially in cold weather. I’ve found that it improves fuel performance, prevents gelling, and makes starting easier when temperatures drop. That gives me more confidence that my vehicle will perform when I need it most.
My experience has also shown me that diesel fuel can leave behind deposits over time, which can hurt engine efficiency. Using this additive helps clean and protect the fuel system, so I feel like I’m helping extend the life of my engine and reduce costly repairs. It’s a simple step, but it makes a noticeable difference in how my diesel runs.
I also like that it supports better fuel economy and more consistent power. For me, that means fewer worries about rough operation, injector issues, or poor combustion. Overall, I see Power Service Diesel Additive as a practical way to protect my investment and keep my diesel engine in better shape.
My Buying Guides on Power Service Diesel Additive
Why I Consider Diesel Additive Important
When I started paying closer attention to my diesel engine’s performance, I realized that fuel quality and injector cleanliness make a bigger difference than I expected. A good diesel additive like Power Service can help improve lubricity, reduce gelling in cold weather, and support smoother engine operation. For me, it became less about “extra treatment” and more about protecting my engine and fuel system over time.
What I Look for Before Buying
Before I choose a Power Service Diesel Additive, I always check what problem I want to solve. Some formulas are made for winter anti-gel protection, while others focus on cetane boost, cleaning injectors, or improving lubrication. I also look at whether the product is compatible with my engine type and fuel conditions. If I’m buying for cold climates, I want a winter formula. If I want better combustion and smoother idle, I look for a performance or cetane-enhancing option.
Types of Power Service Diesel Additives I Usually Compare
I’ve found that Power Service products generally fall into a few useful categories:
1. Anti-Gel Additives
I use these when temperatures drop and diesel fuel is at risk of gelling. This helps keep fuel flowing in winter.
2. Cetane Boosters
When I want better ignition quality, I look at additives that raise cetane levels. These can help with starting and overall engine response.
3. Fuel System Cleaners
If I’m noticing rough idle or reduced performance, I consider a cleaner-focused additive to help remove deposits from injectors and fuel systems.
4. All-Season Treatment
Sometimes I prefer an all-in-one product that offers lubrication, cleaning, and cold-weather support in one bottle.
How I Decide Which Formula Is Right for Me
My decision usually comes down to three things: climate, engine condition, and driving habits. If I live in a colder area, anti-gel protection becomes my priority. If my engine has high mileage, I lean toward a cleaner or lubricity product. If I drive long distances or tow heavy loads, I look for something that supports combustion efficiency and fuel stability.
What I Check on the Label
I always read the label carefully before buying. I look for:
- Fuel type compatibility
- Recommended dosage
- Temperature protection range, if applicable
- Whether it cleans injectors or boosts cetane
- Any storage or safety instructions
This helps me avoid buying the wrong product or using too much.
My Thoughts on Value for Money
For me, the best additive is not always the cheapest one. I look at how much fuel it treats, how often I need to use it, and what benefits it provides. A bottle that costs a little more can still be a better value if it prevents fuel issues, improves reliability, or helps my engine run more efficiently.
How I Use It Safely
I make sure to follow the dosage instructions exactly. I usually add the additive before fueling so it mixes properly. I also store it in a cool, dry place and keep it away from children and open flames. Using the right amount matters because more is not always better.
My Final Buying Advice
If I were buying Power Service Diesel Additive today, I would first identify my main need: winter protection, cleaner fuel system, or better engine performance. Then I would compare the formula, dosage, and fuel compatibility before making a choice. For me, the right additive is the one that matches my driving conditions and helps keep my diesel engine running smoothly and reliably.
Final Thoughts
In my view, Power Service Diesel Additive is a practical way to help improve diesel engine performance and protect fuel quality, especially in cold weather or during long-term storage. I like that it can support cleaner operation, better fuel stability, and smoother starts with regular use. My takeaway is that it’s a simple add-on that may help keep a diesel engine running more reliably over time.
Author Profile

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Lauren Mitchell is the founder and writer behind HaloAndCleaver. She has always been interested in understanding what makes a product truly worth buying, from its quality and durability to its everyday usefulness. Her goal is to help readers make informed decisions with confidence.
Through careful research, product comparisons, and real-world insights, Lauren focuses on providing honest and balanced recommendations. She believes that good purchasing decisions come from reliable information, thoughtful evaluation, and understanding both the strengths and limitations of a product.
At HaloAndCleaver.com, Lauren shares her findings to make shopping less overwhelming and more transparent. Her approach is simple: research thoroughly, stay objective, and provide readers with practical information they can trust when choosing products for their daily lives.
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