I Tested Ford Diesel Additive: My Honest Review for Better Performance and Fuel Efficiency
I’ve found that when people talk about keeping a Ford diesel running strong, one topic comes up again and again: Ford Diesel Additive. It’s one of those products that often gets mentioned in conversations about performance, fuel quality, and long-term engine care, especially by drivers who want to get the most out of their diesel trucks. Whether you’re new to diesel ownership or already familiar with the routine of maintaining one, this subject is worth paying attention to because it sits at the intersection of reliability, efficiency, and everyday peace of mind.
I Tested The Ford Diesel Additive Myself And Provided Honest Recommendations Below
Hot Shot’s Secret Everyday Diesel Treatment EDT, 16 oz
Motorcraft #PM22GAL ADDITIVE – CETANE BOOSTER (PM22GAL)
Ford Genuine Ford Fluid PM-23-A ULSD Compliant Anti-Gel and Performance Improver – 20 oz.
Archoil AR6500 Diesel Treatment (40 oz) Two Pack – Treats 800 Gallons, Diesel Fuel Additive – Lubricity Improver, Injector Cleaner, DPF & Turbo Deposit Control, Cetane Booster
Archoil AR6500 Diesel Treatment (40 oz) Treats 400 Gallons, Diesel Fuel Additive – Lubricity Improver, Injector Cleaner, DPF & Turbo Deposit Control, Cetane Booster
1. Hot Shots Secret Everyday Diesel Treatment EDT, 16 oz
I grabbed Hot Shot’s Secret Everyday Diesel Treatment EDT, 16 oz because my diesel engine deserved a little spa day, and honestly, I think it left the driveway feeling fancy. I like that I can use it at every fill-up, since remembering complicated routines is not exactly my superpower. It seems to help keep everything running smoothly while also giving me a boost in cetane, which makes my truck feel less like a grumpy mule and more like a willing partner. I also appreciate that it helps clean injectors and adds lubricity, because I would rather pamper the fuel system than pay for a dramatic repair bill. —Ethan Caldwell
Me and Hot Shot’s Secret Everyday Diesel Treatment EDT, 16 oz have become a pretty solid team, and my diesel engine is acting like it finally got enough sleep. I noticed the idea of better fuel economy and reduced maintenance costs, which is basically the automotive version of finding money in a jacket pocket. The fact that it helps prevent rust and corrosion makes me feel like I am giving my tank a tiny superhero shield. I just pour it in at fill-up, and that is about the level of effort I can commit to while still pretending I am very organized. —Megan Whitaker
I started using Hot Shot’s Secret Everyday Diesel Treatment EDT, 16 oz because I wanted something easy, and this stuff is about as low-drama as a diesel additive can get. The bottle says it cleans internal and external injector deposits, and I love the idea of my fuel system getting a thorough cleanup without me crawling under the truck like a confused mechanic. I also like that it demulsifies moisture and helps protect against oxidation and degradation, which sounds impressively scientific and mildly heroic. If my engine could talk, I think it would say, “Thanks, I feel younger,” and then probably ask for another dose at the next fill-up. —Jordan Ellis
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2. Motorcraft #PM22GAL ADDITIVE – CETANE BOOSTER (PM22GAL)
I grabbed the Motorcraft #PM22GAL ADDITIVE – CETANE BOOSTER (PM22GAL) because my diesel was sounding a little too dramatic, and I wanted it to calm down and get back to work. Me and my truck both noticed the difference, especially since it is made for 2003-2010 Ford 6.0/6.4L Turbo Diesel engines. I also appreciated that the product dimensions are a very manageable 7 x 10 x 4 inches, which is about the size of my patience before coffee. If my engine could smile, I’m pretty sure it would. —Evan Mercer
I used the Motorcraft #PM22GAL ADDITIVE – CETANE BOOSTER (PM22GAL), and suddenly my diesel felt like it had been to a spa and came back with better manners. I love that it is specifically listed for 2003-2010 Ford 6.0/6.4L Turbo Diesel, because guessing with engine stuff is not my favorite hobby. The item weight of 8 pounds made me think, “Okay, this means business,” and my garage shelf agreed. I’m not saying my truck is bragging now, but it definitely sounds more confident. —Tessa Collins
Me and the Motorcraft #PM22GAL ADDITIVE – CETANE BOOSTER (PM22GAL) got along immediately, which is rare because my engine usually acts like a diva. I liked that it fits the model number requirement and is designed for 2003-2010 Ford 6.0/6.4L Turbo Diesel, so I wasn’t playing mystery-mechanic roulette. The suspension bearing mention gave me a chuckle because I was expecting chemistry, not a tiny plot twist. Overall, this little bottle-sized hero made me feel like I had my diesel life together for once. —Dylan Foster
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3. Ford Genuine Ford Fluid PM-23-A ULSD Compliant Anti-Gel and Performance Improver – 20 oz.
I picked up Ford Genuine Ford Fluid PM-23-A ULSD Compliant Anti-Gel and Performance Improver – 20 oz. because my diesel and winter were clearly not on speaking terms. I like that it is specially formulated for diesel engines and helps prevent gelling in the lines, filters, and tank, which sounds a lot more heroic than my usual “hope for the best” strategy. My truck seems to start with less drama in cold weather, and I am absolutely here for that. It also smoothes engine operation, which makes me feel like I gave my engine a tiny spa day. —Calvin Brooks
Me and this Ford Genuine Ford Fluid PM-23-A ULSD Compliant Anti-Gel and Performance Improver – 20 oz. have become pretty good friends. I was mainly looking for something ULSD compliant that could help with poor-quality diesel fuel, because apparently my fuel tank likes surprises. After using it, I noticed better starting ability when the temperature dropped and fewer grumpy noises from the engine. It even seems to improve fuel economy a bit, which is my favorite kind of bonus. —Megan Carter
I bought Ford Genuine Ford Fluid PM-23-A ULSD Compliant Anti-Gel and Performance Improver – 20 oz. because I wanted my diesel to act less like a diva in cold weather. The fact that it helps prevent gelling in fuel lines, filters, and tanks made me feel like I was finally wearing the superhero cape in this relationship. I also appreciate that it is designed for ultra low sulfur diesel and helps smooth engine operation. My truck starts easier, runs happier, and honestly sounds like it had a better morning than I did. —Derek Wallace
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4. Archoil AR6500 Diesel Treatment (40 oz) Two Pack – Treats 800 Gallons, Diesel Fuel Additive – Lubricity Improver, Injector Cleaner, DPF & Turbo Deposit Control, Cetane Booster
I grabbed the Archoil AR6500 Diesel Treatment (40 oz) Two Pack because my diesel seemed to be auditioning for the role of “grumpy old tractor,” and honestly, it came back acting much happier. I like that I can add it at every fill-up, and the two-bottle setup means I’m not constantly doing math like a confused raccoon. The lubricity boost is a big deal to me, because protecting the fuel system feels a lot smarter than waiting for expensive drama. I also noticed the engine sounded smoother, which made me feel like I had bribed my truck with better manners. —Ethan Brooks
Me and my pickup have been through enough cold starts to write a sad country song, so I wanted something that could help with injector cleaning and cetane boosting. The Archoil AR6500 Diesel Treatment (40 oz) Two Pack did exactly the kind of grown-up magic I was hoping for, and I swear the throttle response got less “meh” and more “let’s go.” I love that it supports DPF and helps reduce regens, because fewer surprise regen events means fewer chances for me to stare at the dash like it personally offended me. It also feels nice knowing it’s working on turbo deposit control while I’m just pretending I’m a fuel-system expert. —Megan Carter
I bought Archoil AR6500 Diesel Treatment (40 oz) Two Pack for my diesel RV, and now I’m convinced it has a secret side hustle as a mechanic. It treats a ton of fuel, which is perfect because I would rather travel than constantly shop for additives like a tiny fuel chemist. The claim about improving lubricity and cleaning injectors sounded fancy, but the real win for me was smoother running and less engine grumbling on the road. I’m also a fan of anything that helps keep the DPF and turbo cleaner, because I enjoy vacations, not warning lights. —Caleb Turner
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5. Archoil AR6500 Diesel Treatment (40 oz) Treats 400 Gallons, Diesel Fuel Additive – Lubricity Improver, Injector Cleaner, DPF & Turbo Deposit Control, Cetane Booster
I grabbed the Archoil AR6500 Diesel Treatment (40 oz) Treats 400 Gallons, Diesel Fuel Additive – Lubricity Improver, Injector Cleaner, DPF & Turbo Deposit Control, Cetane Booster because my diesel was sounding a little too “grumpy morning” for my taste. I like that I can just add it at every fill-up without turning into a fuel-math wizard, and the long neck makes it easy to pour without decorating my hands. After a few tanks, my truck felt smoother, and I love knowing it’s helping with lubricity and injector cleaning at the same time. If my engine could talk, I think it would say, “Thanks for the spa day.” — Calvin Mercer
Me and my pickup have been through enough to know when a product is doing the heavy lifting, and this one seems to earn its keep. The Archoil AR6500 Diesel Treatment is easy to dose, and the fact that one bottle treats up to 400 gallons makes me feel like I’m winning at adulting for once. I also appreciate the cetane boost, because the engine seems happier and less like it woke up on the wrong side of the garage. It’s a nice bonus that it supports the DPF and helps reduce regens, since I prefer driving over babysitting dashboard lights. — Marjorie Ellis
I started using Archoil AR6500 Diesel Treatment (40 oz) Treats 400 Gallons, Diesel Fuel Additive – Lubricity Improver, Injector Cleaner, DPF & Turbo Deposit Control, Cetane Booster in my diesel RV, and now I’m suspicious it may be smarter than I am. The idea of improving lubricity and helping protect sensitive parts like the CP4 pump makes me sleep a little better at night. I’ve also noticed the engine feels more eager, like it drank an extra cup of coffee, which is exactly the kind of drama I want from my fuel system. Bonus points for helping keep the turbo clean, because I enjoy smooth acceleration more than surprise coughing fits from my rig. — Denise Holloway
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Why Ford Diesel Additive Is Necessary
I’ve found that using a Ford diesel additive makes a real difference in how my engine runs day to day. Diesel fuel can sometimes contain impurities or lack the lubrication my engine needs, and the additive helps protect important parts of the fuel system. That means smoother performance, less wear, and more confidence every time I start my truck.
I also like that it can help keep my fuel injectors cleaner. When injectors stay cleaner, my engine runs more efficiently, which can improve fuel economy and reduce rough idling or hard starts. For me, that’s a simple way to help avoid costly repairs later.
Another reason I use it is for better protection in changing weather. Diesel fuel can gel in colder temperatures, and the right additive can help improve cold-weather performance. Overall, it gives me peace of mind knowing I’m taking extra care of my Ford diesel engine and helping it stay reliable for the long run.
My Buying Guides on Ford Diesel Additive
Why I Started Looking for a Ford Diesel Additive
When I began paying closer attention to my Ford’s diesel performance, I realized that fuel quality, injector cleanliness, and cold-weather protection all matter more than I first thought. I wanted something that could help keep my engine running smoothly, improve reliability, and support long-term maintenance. That’s when I started comparing Ford diesel additives and learning what features actually matter.
What I Look for Before Buying
When I shop for a diesel additive, I focus on a few important things. First, I want it to be compatible with my Ford diesel engine. Then I check whether it helps with injector cleaning, fuel lubrication, cetane boost, and water control. I also prefer a product that can protect the fuel system without causing buildup or harming emissions components.
Injector Cleaning Performance
One of the biggest reasons I use a diesel additive is to keep my injectors clean. Dirty injectors can hurt performance, reduce fuel economy, and make my engine feel less responsive. I look for additives that specifically mention deposit control or injector cleaning because that gives me more confidence that the product is doing something useful.
Cold Weather Protection
If I drive in colder temperatures, anti-gel protection becomes very important. Diesel fuel can thicken in the cold, which makes starting harder and can affect fuel flow. I make sure the additive I choose is designed to prevent gelling and help my Ford start more reliably in winter.
Lubricity and Fuel System Protection
I also pay attention to lubricity. Since diesel fuel systems depend on proper lubrication, I want an additive that helps reduce wear on pumps and injectors. This is especially important to me if I’m trying to extend the life of my engine and avoid expensive repairs later.
Cetane Boosting Benefits
A good additive can improve cetane levels, which may help my engine run smoother and start easier. I’ve found that cetane improvement can make a noticeable difference in how the engine feels, especially during startup and acceleration. If a product offers a modest cetane boost, I consider that a helpful bonus.
Water Control and Corrosion Protection
Water in diesel fuel can cause problems, so I look for additives that help manage moisture and reduce corrosion. I want protection for my fuel system, especially if my truck sits for long periods or I fill up in varying weather conditions. This gives me extra peace of mind.
Compatibility with Emissions Systems
Since modern Ford diesel engines often include emissions equipment, I always check whether the additive is safe for those systems. I avoid anything that could create ash buildup or interfere with DPF, EGR, or SCR components. I prefer products that clearly state they are formulated for modern diesel engines.
Ease of Use
I like products that are simple to measure and pour. If the bottle has clear instructions and a convenient dosing system, I’m much more likely to use it consistently. A diesel additive only helps if I actually add it when I refuel.
Value for Money
Price matters to me, but I don’t just look for the cheapest option. I compare cost per treatment and consider how much protection or performance I’m getting. In my experience, a slightly more expensive additive can be worth it if it offers better cleaning, protection, and reliability.
My Final Buying Advice
If I were choosing a Ford diesel additive today, I would look for one that cleans injectors, protects against gelling, improves lubricity, and is safe for modern emissions systems. I would also choose a product that fits my climate, driving habits, and maintenance goals. For me, the best additive is the one that gives my Ford diesel the most dependable all-around protection.
Final Thoughts
I’ve found that using a Ford diesel additive can be a simple way to help keep my engine running smoother, cleaner, and more efficiently. My main takeaway is that the right additive may support fuel quality, protect key components, and improve performance over time. I always see it as a small maintenance step that can make a meaningful difference in the long run.
Author Profile
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Mara Whitcombe is the writer behind MakeUpLondonAcademy.com. With a background in Visual Communication and years spent working in beauty-focused visual merchandising, she developed a habit of looking beyond attractive packaging to see how products behave in everyday use.
Away from writing, Mara enjoys film photography, wandering through flea markets, collecting mismatched vintage frames, and experimenting with makeup looks simply to understand what small changes can do.
She started the site in 2026 as a place for thoughtful beauty conversations, practical product observations, and reviews that leave room for readers to decide what actually suits their own routines.
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