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โ๏ธ Power up your engineโs longevity with Zinc ZDDP โ because your ride deserves the best!
Rislone Zinc ZDDP Supplement is a high-performance oil additive that boosts zinc and phosphorus levels to protect critical engine components like pistons and camshafts. It reduces friction and wear, especially during startup, stabilizes motor oil against thermal and viscosity breakdown, and extends engine life. Compatible with all cars, itโs a must-have for maintaining older engines and enhancing modern oil performance.










| ASIN | B0075559UY |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #7,599 in Automotive ( See Top 100 in Automotive ) #18 in Engine & Oil Fluid Additives #123 in Motor Oils |
| Brand | Rislone |
| Brand Name | Rislone |
| Compatible with Vehicle Type | Car |
| Container Type | Bottle |
| Customer Reviews | 4.7 out of 5 stars 2,217 Reviews |
| Global Trade Identification Number | 00078615044054 |
| Included Components | 1 Bottle Rislone 4405 Engine Oil Supplement, 11oz |
| Item Type Name | Engine Oil Supplement Concentrate with Zinc Treatment - 11 oz. |
| Liquid Volume | 11 fluid ounces |
| Manufacturer | Rislone |
| Manufacturer Part Number | 4405 |
| Manufacturer Warranty Description | No |
| Model Number | 4405 |
| Package Information | Bottle |
| Size | 1 Pack |
| UPC | 078615044054 |
| Unit Count | 11 Fluid Ounces |
| Vehicle Service Type | Car |
R**E
Nice little help for my old car
Maybe not exciting, but this Rislone zinc treatment was a thoughtful gift from my son for my 2008 Corolla. I poured it in during an oil change and the engine idle smoothed out a bit. the small yellow bottle is easy for my hands to hold. Iโm glad the car sounds less โtickyโ now.
A**W
Use this zddp for my flat tappet cam 454 must have
Fast shipping good price on this very good zddp
J**.
Added for preventative but worked great
Added to my 1966 mustang 289 engine
D**O
Oil additive that calmed my engine
One of my coworkers swears by this stuff, so i grabbed a bottle for my old Corolla that I drive home after night shifts. Engine was ticking on cold starts and it bugged me pulling out of the hospital lot. Poured this in at my oil change and the next morning it was way quieter, which honestly made me glad I tried it bc my commute felt calmer.
H**N
Good for Older Harley Engine
A bit of added protection on standard automotive synthetic engine oil. Not for wet clutch or engines with catalytic exhaust systems.
P**R
Protecting small engines as well as older vehicles
I was unaware of the fact that modern SAE oils that have been used in lawn equipment, 4 cycle engines, can be damaged due to the lack of Zinc in the formulations that have been marketed since the 1990โs. As I live on a small acreage I have many lawn tractors and lawn movers plus generators, power washers, trimmers, etc. I restore others that I purchase locally. Seller shipped promptly and arrived in great shape.
J**R
Has what old engines crave
This lets me use regular modern 5w30 low zinc oil in an old 80s 350 engine without having to buy different types of oils. Follow label instructions, do not over dose.
M**N
Keeps down internal engine noise.
Great quality product, keeps engine quiet.
G**3
Rislone
Great product.
E**N
Additif trรจs polyvalent
Beaucoup plus facile d'utilisation que l'ancienne formule
R**Y
Good zddp additive.
Use this in my ram
R**E
Great for oder vintage cars and truck
Just fine
D**N
Creates a lubrication film per instructions
I filled suggested amount per instructions. Used a syringe, on my 2015 corolla. Noticed, my idling dropped from 1000rpm to about half ,600rpm combined with a lower viscosity 0w16 oil. Although, it's not a large sample size. I can say, it does work, per my vehicle.
Trustpilot
4 days ago
3 weeks ago