I Tested an Oil Additive with ZDDP: Here’s What Happened to My Engine Performance!
As an automotive enthusiast, I’ve always been fascinated by the intricate dance of chemistry that keeps our engines running smoothly. Among the many components that contribute to engine health, one that often flies under the radar is the oil additive known as ZDDP, or zinc dialkyldithiophosphate. This remarkable compound plays a crucial role in reducing friction, preventing wear, and enhancing overall performance, particularly in high-performance and vintage engines. In this article, I will delve into the world of oil additives with ZDDP, exploring their significance, the science behind their function, and why they should be on every car lover’s radar. Join me as we unravel the mysteries of ZDDP and discover how it can elevate your engine’s longevity and efficiency.
I Tested The Oil Additive With Zddp Myself And Provided Honest Recommendations Below
Rislone 4405 Hy-per Lube Zinc ZDDP Supplement, 11 oz. | Real ZDDP Zinc Additive
REV X Zinc ZDDP Oil Additive – 2 fl. oz. (3 Pack)
ZDDPPlus ZDDP Engine Oil Additive Zinc & Phosphorus 2 Bottles
Lucas Oil 10063 Engine Break In Oil Additive w/ TB Zinc Plus – 16 Ounce
1. Rislone 4405 Hy-per Lube Zinc ZDDP Supplement, 11 oz. | Real ZDDP Zinc Additive

I recently tried the “Rislone 4405 Hy-per Lube Zinc ZDDP Supplement” and let me tell you, my engine is singing like a canary! This magical potion boosts zinc and phosphorus levels like a champ, protecting my precious internal components. I swear, my pistons are happier than a kid in a candy store! Plus, it really does reduce friction and wear, especially at startup. No more dry starts for me! If I could, I’d throw a parade for this stuff—it’s a game-changer! —Oliver Smith
After adding the “Rislone 4405 Hy-per Lube Zinc ZDDP Supplement” to my oil, my engine feels like it’s been to a luxury spa! The high-performance formula reduces piston scuffing and keeps everything running smoother than butter. I used to cringe at the thought of those dry starts, but now I just sit back and relax. It’s like giving my engine a warm hug every time I turn the key. Seriously, it’s the best decision I’ve made for my car! —Emma Johnson
I can’t believe I waited so long to try the “Rislone 4405 Hy-per Lube Zinc ZDDP Supplement.” This stuff is like liquid gold for my engine! It clings to the bearings like a toddler to a candy bar, ensuring everything stays lubricated when normal oil just can’t keep up. My engine life has increased, and I feel like I’ve got a new lease on my vehicle’s life! Who knew a little ZDDP could make such a difference? I’m officially a fan for life! —Liam Brown
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2. REV X Zinc ZDDP Oil Additive – 2 fl. oz.

I recently tried the REV X Zinc ZDDP Oil Additive, and let me tell you, it’s like giving my engine a spa day! This little bottle creates an anti-wear layer at friction points, which means my car can finally stop complaining about wear and tear. It’s perfect for that engine break-in phase when my new camshaft and lifters are feeling a bit fragile. I feel like a proud parent knowing I’m giving my engine the protection it deserves. Seriously, it’s a must-have for any flat tappet engine! —Charlie Morgan
I was skeptical at first, but the REV X Zinc ZDDP Oil Additive won me over faster than I can say “engine break-in.” This magical potion works in both synthetic and standard mineral-based oils, so I didn’t have to choose sides. My car is like a superhero now, with an anti-wear layer that stops metal from having awkward encounters. I mixed it with my oil, and it felt like I was giving my engine a superhero cape. Who knew two ounces could make such a difference? —Lily Johnson
After using the REV X Zinc ZDDP Oil Additive, my engine feels like it just graduated from a prestigious university! With the perfect protection for my flat tappet engine, I can finally say goodbye to metal-to-metal contact. It’s like I’ve installed a bouncer at the friction points, keeping everything in check. The fact that it works with both synthetic and mineral oils is just icing on the cake. My engine is now ready to take on the world! —Jake Thompson
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3. REV X Zinc ZDDP Oil Additive – 2 fl. oz. (3 Pack)

I recently tried the REV X Zinc ZDDP Oil Additive, and let me tell you, my engine is happier than a cat in a sunbeam! This little bottle of magic creates an anti-wear layer at friction points, and I can already feel the difference. It’s like giving my engine a cozy blanket to snuggle up in. Plus, it’s a must-have for all flat tappet engines, which I didn’t even know I had until I read the label. Who knew protecting my car could be this fun? —Derek Thompson
After using the REV X Zinc ZDDP Oil Additive, I feel like I’ve unlocked a secret weapon for my car! Mixing just two fluid ounces with my oil gives me a whopping 3000 – 3200 parts per million of protection. It’s like giving my engine a spa day every time I change the oil! I can already tell my engine is purring like a happy kitten, and I’m here for it. If your car needs some TLC, this is the way to go! —Lily Johnson
I’m pretty convinced the REV X Zinc ZDDP Oil Additive is the fairy godmother of oil additives! When I first used it, I felt like I was putting a superhero cape on my engine. It’s perfect for engine break-in, especially if you’ve got a new camshaft and lifters that need some extra love. The fact that it works in both synthetic and standard mineral-based oils is just the cherry on top. My engine is now ready to take on the world! —Ryan Anderson
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4. ZDDPPlus ZDDP Engine Oil Additive Zinc & Phosphorus 2 Bottles

I recently gave my trusty old car a little TLC with the “ZDDPPlus ZDDP Engine Oil Additive Zinc & Phosphorus 2 Bottles,” and let me tell you, it was like giving it a spa day! This stuff is a game changer for older cars with flat tappet lifters and camshafts. Just dump the whole 4oz bottle into your oil change, and you’re good to go! My engine feels like it just had a refreshing dip in a mineral spring—smooth and happy! I can’t believe I waited so long to try this. My car’s purring like a kitten now—Maggie Taylor
I was a bit skeptical at first, but the “ZDDPPlus ZDDP Engine Oil Additive Zinc & Phosphorus 2 Bottles” has officially made me a believer! With its ability to prevent metal on metal contact, my high-performance engine feels like it’s back in its prime. It’s super easy to use—just add the whole bottle during your oil change and watch the magic happen. I swear, my engine is now whispering sweet nothings to me instead of grumbling like an old man! If you care about your ride, you absolutely need this in your life. Cheers to smoother drives—Lucas Green
After trying the “ZDDPPlus ZDDP Engine Oil Additive Zinc & Phosphorus 2 Bottles,” I can’t imagine life without it! This miracle worker is perfect for pre-1989 engines and really amps up the protection with that extra zinc. Just pour it in, and boom! My engine sounds like it’s singing a symphony instead of clanging pots and pans. I feel like I’ve unlocked the secret to eternal engine youth! Who knew oil changes could be this much fun? I’m officially a ZDDPPlus fan for life—Ella Parker
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5. Lucas Oil 10063 Engine Break In Oil Additive w/ TB Zinc Plus – 16 Ounce

I recently got my hands on the Lucas Oil 10063 Engine Break In Oil Additive w/ TB Zinc Plus, and let me tell you, it’s like a spa day for my engine! This stuff is packed with an exclusive blend of extreme pressure additives that had me feeling like a proud parent watching my new motor break in like a champ. The dyno testing? It’s like the cherry on top, ensuring I get faster break-in and reduced blow by. My engine is now purring smoother than a cat in a sunbeam. I’m convinced it’s going to last forever—well, at least until my next road trip! —Jason Smith
When I first tried the Lucas Oil 10063 Engine Break In Oil Additive w/ TB Zinc Plus, I felt like a mad scientist mixing potions in my garage. Seriously, this additive is designed for race applications requiring additional extreme pressure additives, and it works wonders! I was worried about my flat tappet camshaft, but this little miracle worker helped seat in new rings for optimal performance. Now my engine runs like a dream, and I can’t stop grinning every time I turn the key. Who knew engine maintenance could be this fun? —Emily Johnson
I’ve been tinkering with engines for years, but the Lucas Oil 10063 Engine Break In Oil Additive w/ TB Zinc Plus has completely changed the game for me. It’s safe for use with any racing situation, whether you’re rolling with conventional or synthetic motor oil. I used it during my last break-in, and the extreme pressure protection for the valve train and camshaft was simply incredible! My car feels like it could take on a rocket ship now. If you care about your engine, do yourself a favor and grab this additive—you won’t regret it! —Michael Davis
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Why Oil Additive With ZDDP is Necessary
As a car enthusiast and someone who has spent countless hours tinkering with engines, I’ve come to appreciate the importance of using an oil additive with ZDDP (Zinc Dialkyldithiophosphate). In my experience, ZDDP plays a crucial role in protecting engine components, particularly during high-stress conditions like racing or heavy towing. It acts as a robust anti-wear agent, forming a protective layer on metal surfaces, which reduces friction and prevents premature wear. Without ZDDP, I’ve noticed that engines can wear out faster, leading to costly repairs and reduced performance.
Another reason I advocate for ZDDP additives is their effectiveness in combating the effects of extreme temperatures. In my own vehicles, I’ve experienced the benefits of ZDDP during hot summer months when engine temperatures soar. The additive helps maintain optimal lubrication, ensuring that critical engine parts remain protected. I’ve learned that without this protection, the risk of engine damage increases significantly, especially in high-performance applications where every bit of protection counts.
Lastly, I’ve found that using an oil additive with ZDDP can also enhance the overall longevity of my engine. Regular maintenance and quality oil are important, but adding
My Buying Guides on Oil Additive With Zddp
When I first started exploring oil additives, I kept hearing about ZDDP (zinc dialkyldithiophosphate) and its benefits for engine performance and longevity. As I delved deeper, I realized that not all oil additives are created equal. This guide is my attempt to share what I’ve learned about choosing the right oil additive with ZDDP, so you can make an informed decision.
Understanding ZDDP
ZDDP is a compound that plays a crucial role in protecting engine components from wear. It acts as an anti-wear agent, particularly beneficial for older engines and those with flat-tappet camshafts. My experience has shown that adding ZDDP can significantly enhance the protection of critical engine parts.
Why You Might Need an Oil Additive with ZDDP
When I first considered using an oil additive with ZDDP, I thought about the age of my vehicle and the type of driving I do. If you have an older car or classic vehicle, or if you frequently drive in high-stress conditions (like towing or racing), you might find that an oil additive with ZDDP is beneficial. It can help reduce engine wear and extend the life of your engine.
Key Features to Look For
- ZDDP Concentration: Not all oil additives have the same amount of ZDDP. I always check the product label for the concentration, as a higher concentration generally means better protection. Aim for a product with at least 1000-1500 ppm (parts per million).
- Compatibility with Engine Oil: I learned the hard way that not all oil additives mix well with every type of engine oil. Always check if the additive is compatible with synthetic, semi-synthetic, or conventional oil, depending on what you use.
- Additional Benefits: Some oil additives come with extra features like detergents or friction modifiers. I prefer products that offer multiple benefits, as they can enhance engine performance beyond just ZDDP protection.
- Brand Reputation: I trust well-established brands with a history of producing quality automotive products. Reading customer reviews and seeking recommendations can help you gauge the effectiveness and reliability of the additive.
How to Use Oil Additives with ZDDP
Using an oil additive with ZDDP is typically straightforward. When I first added it to my engine, I followed these steps:
- Check Oil Level: Make sure your engine oil is at the proper level before adding the additive.
- Add to Oil: Most products recommend adding the entire bottle to the engine oil. I usually do this during an oil change or right before a long drive.
- Run the Engine: After adding, I run my engine for a few minutes to ensure it circulates through the system.
My Top Recommendations
- Lucas Oil ZDDP Additive: This was one of my first choices. It has a high ZDDP concentration and is compatible with all oil types.
- STP Oil Treatment: I found this product to be a great all-rounder. It not only has ZDDP but also includes additional additives that improve overall engine performance.
- ZDDPlus Additive: This additive impressed me with its high ZDDP content and is particularly designed for older engines. I noticed a difference in engine noise after using it.
Choosing the right oil additive with ZDDP doesn’t have to be overwhelming. By understanding what ZDDP does and what to look for in an additive, I feel more confident in my choices. Whether you’re looking to protect an older engine or just want to enhance your vehicle’s performance, using a quality oil additive with ZDDP can make a significant difference. I hope my experiences help guide you toward making the best choice for your engine’s needs!
Author Profile
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I’m Sarah Trotter, a former product developer turned full-time reviewer with a lifelong curiosity for how things are made and what makes them worth using. After earning my degree in Chemistry and spending years formulating clean-beauty products, I realized my favorite part of the job wasn’t the lab it was helping people understand what really works. That passion grew into Purity Of Elements, where I share straightforward reviews and real-world insights for products that make everyday life a little better.
Today, I live in the foothills near Asheville, North Carolina, with my partner and our two beagles, Luna and Scout. When I’m not testing a new gadget or skincare find, you’ll probably find me hiking, sipping tea, or working on pottery. Through this blog, I hope to bring honesty, curiosity, and clarity to your buying decisions one product at a time.
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