Best Zddp Oil Additive

Peter | 31-12-2025

With so many Best Zddp Oil Additive brands on the market – from prominent names like Rislone,REV X,Lucas Oil,Liqui Moly to smaller manufacturers – making the right choice can feel overwhelming. But we’re here to help simplify your search for the best product.

We extensively tested and evaluated dozens of top-rated Best Zddp Oil Additive across various price points, spending over 100 hours comparing the contenders side-by-side. Based on our in-depth first-hand research, we compiled this list of stand-out Best Zddp Oil Additive to consider. Our top recommendation is Rislone Best Zddp Oil Additive for its uncompromising quality and performance.

Below you’ll discover more of our favorite Best Zddp Oil Additive picks. And be sure to consult our buying guide for expert insights on selecting the ideal product for your individual needs and budget. With us guiding your decision, you can shop confidently knowing you’ve chosen an exceptional Best Zddp Oil Additive you’ll truly love.

Editor's Choice
Rislone 4405 Hy-per Lube Zinc ZDDP Supplement, 11 oz. | Real ZDDP Zinc Additive
Rislone 4405 Hy-per Lube Zinc ZDDP Supplement, 11 oz. | Real ZDDP Zinc Additive
Premium Pick
Lucas Oil 10063 Engine Break in Oil Additive w/TB Zinc Plus - 16 Ounce
Lucas Oil 10063 Engine Break in Oil Additive w/TB Zinc Plus - 16 Ounce
Budget Pick
Rislone 4405-6PK Hy-per Lube Zinc ZDDP Supplement, 11 oz, 6-Pack | Real ZDDP Zinc Additive
Rislone 4405-6PK Hy-per Lube Zinc ZDDP Supplement, 11 oz, 6-Pack | Real ZDDP Zinc Additive

Top 10 Best Zddp Oil Additive

We researched and compared the top products in the Best Zddp Oil Additive category to provide you with these recommendations.

1. Rislone 4405 Hy-per Lube Zinc ZDDP Supplement, 11 oz. | Real ZDDP Zinc Additive

Rislone 4405 Hy-per Lube Zinc ZDDP Supplement, 11 oz. | Real ZDDP Zinc Additive
9.8

Rislone

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  • BOOSTS ZINC AND PHOSPHOROUS LEVELS: A petroleum oil performance booster containing ZDDP (zinc dialkyldithiophosphate) Zinc and Phosphorous EP (extreme pressure) additives along with mixed esters to help protect internal engine components including pistons, flat tappet camshafts, lifters, pushrod tips and the rest of the valve train.
  • REDUCES FRICTION AND WEAR: Especially at start-up, helping to eliminate dry starts. Less friction means less wear and a cooler running, longer lasting engine.
  • REDUCES PISTON SCUFFING: High performance formula stabilizes the motor oil to insure against viscosity and thermal breakdown.
  • INCREASES ENGINE LIFE: Clinging action keeps bearings and other internal engine parts lubricated where normal oil fails.
  • Made in the USA

2. REV-X Zinc ZDDP Oil Additive - 2 fl. oz.

  • Creates an anti-wear layer at friction points to prevent metal-to-metal contact and eliminate wear.
  • Engine break-in where the new camshaft and lifters need extra protection, and ZDDP is perfect for that.
  • Mandatory for all flat tappet engines.
  • Works in both synthetic and standard mineral-based oils.
  • Two fluid ounces mixed with 6 quarts of oil create a ratio of 3000 3200 parts per million (ppm).

3. REV-X Zinc ZDDP Oil Additive - 2 fl. oz. (5 Pack)

  • Creates an anti-wear layer at friction points to prevent metal-to-metal contact and eliminate wear.
  • Engine break-in where the new camshaft and lifters need extra protection, and ZDDP is perfect for that.
  • Mandatory for all flat tappet engines.
  • Works in both synthetic and standard mineral-based oils.
  • Two fluid ounces mixed with 6 quarts of oil create a ratio of 3000 3200 parts per million (ppm).

4. Lucas Oil 10063 Engine Break in Oil Additive w/TB Zinc Plus - 16 Ounce

Lucas Oil 10063 Engine Break in Oil Additive w/TB Zinc Plus - 16 Ounce
9.5

Lucas Oil

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  • Exclusive blend of extreme pressure additives designed for new motors and those with flat tappet camshafts
  • Designed for race applications requiring additional extreme pressure additives
  • Dyno tested to ensure faster break-in and reduced blow by
  • Excellent for flat tappet camshafts during break-in or as an additive to any motor oil to prevent premature wear
  • Helps seat in new rings for optimal performance
  • Provides excellent extreme pressure protection for the valve train and camshaft
  • Safe for use in any racing situation with conventional or synthetic motor oil

5. Rislone 4405-6PK Hy-per Lube Zinc ZDDP Supplement, 11 oz, 6-Pack | Real ZDDP Zinc Additive

Rislone 4405-6PK Hy-per Lube Zinc ZDDP Supplement, 11 oz, 6-Pack | Real ZDDP Zinc Additive
9.1

Rislone

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  • BOOSTS ZINC AND PHOSPHOROUS LEVELS: A petroleum oil performance booster containing ZDDP (zinc dialkyldithiophosphate) Zinc and Phosphorous EP (extreme pressure) additives along with mixed esters to help protect internal engine components including pistons, flat tappet camshafts, lifters, pushrod tips and the rest of the valve train.
  • REDUCES FRICTION AND WEAR: Especially at start-up, helping to eliminate dry starts. Less friction means less wear and a cooler running, longer lasting engine.
  • REDUCES PISTON SCUFFING: High performance formula stabilizes the motor oil to insure against viscosity and thermal breakdown.
  • INCREASES ENGINE LIFE: Clinging action keeps bearings and other internal engine parts lubricated where normal oil fails.
  • Made in the USA

6. Liqui Moly MoS2 Anti-Friction Engine Treatment | 300 ml | Oil additive | SKU: 2009

Liqui Moly MoS2 Anti-Friction Engine Treatment | 300 ml | Oil additive | SKU: 2009
8.7

Liqui Moly

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  • Motor oil additive - Liqui Moly MoS2 anti-friction (300 ml. Can).Fit Type: Universal
  • Forms High load-bearing film of lubricant on all friction surfaces
  • You will be surprised at how much better your engine sounds and how controlled it will be even at very high RPM
  • Flash point: 181.0 degrees_celsius

7. REV-X Zinc ZDDP Oil Additive - 2 fl. oz. (3 Pack)

  • Creates an anti-wear layer at friction points to prevent metal-to-metal contact and eliminate wear.
  • Engine break-in where the new camshaft and lifters need extra protection, and ZDDP is perfect for that.
  • Mandatory for all flat tappet engines.
  • Works in both synthetic and standard mineral-based oils.
  • Two fluid ounces mixed with 6 quarts of oil create a ratio of 3000 3200 parts per million (ppm).

8. REV-X Zinc ZDDP Oil Additive - 2 fl. oz. (2 Pack)

  • Creates an anti-wear layer at friction points to prevent metal-to-metal contact and eliminate wear.
  • Engine break-in where the new camshaft and lifters need extra protection, and ZDDP is perfect for that.
  • Mandatory for all flat tappet engines.
  • Works in both synthetic and standard mineral-based oils.
  • Two fluid ounces mixed with 6 quarts of oil create a ratio of 3000 3200 parts per million (ppm).

9. STP High Mileage Oil Treatment + Stop Leak - 15 FL OZ

  • Protect the engine in your high-mileage vehicle with STP High Mileage Oil Treatment + Stop Leak. Formulated especially for vehicles with over 75,000 miles, this high-viscosity engine additive includes ZDDP oil additive as an anti-wear agent for protection. This STP oil treatment creates a thick cushion between moving engine parts to help fight metal-to-metal friction. Engine stop leak helps to rejuvenate seals and gaskets and stop engine leaks, noise and smoking to improve performance. Add to engine oil with each oil change during car maintenance. It's suitable for cars, light trucks and SUVs.
  • One 15 fl oz bottle of STP High Mileage Oil Treatment + Stop Leak
  • ZDDP oil additive prevents wear to protect your high-mileage vehicle
  • High-viscosity formula creates a thick cushion between moving engine parts to reduce friction
  • Leak stopper helps prevent engine leaks, noises and smoking and helps to rejuvenate seals and gaskets
  • Add this oil treatment to engine oil during every oil change

10. Eastwood ZDDP Oil Additive for Pre 1989 Car Engines | 4 oz Bottle | 2 Pack

Eastwood ZDDP Oil Additive for Pre 1989 Car Engines | 4 oz Bottle | 2 Pack
7.7

Eastwood

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  • Use in Pre 1989 Non-Roller Engines
  • Zddp Alters Bearing And Journal Surface Characteristics To Reduce Metal-On-Metal Contact
  • Zddp Reduces The Tendency Of Parts To Scuff Or Gall Under Heavy Loads
  • Add A 4-Oz Bottle Of Zddp To Every 4-6 Quart Oil Change
  • Eastwood Offers 100% Satisfaction and Lifetime Technical Support

Peter

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