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🚗 Keep your high-mileage engine young, quiet, and leak-free—because your ride deserves the best!
STP High Mileage Oil Treatment + Stop Leak is a 15 FL OZ high-viscosity engine additive designed for vehicles with over 75,000 miles. Featuring ZDDP anti-wear agents, it reduces friction by creating a thick protective cushion between engine parts. It also rejuvenates seals and gaskets to stop leaks, noise, and smoking, improving overall engine performance. Suitable for cars, light trucks, and SUVs, it should be added during every oil change to maintain engine health and longevity.
| Asin | B00D8OFQUE |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #4,572 in Automotive (See Top 100 in Automotive) #43 in Tire Repair Tools |
| Brand Name | STP |
| Compatible With Vehicle Type | Car |
| Container Type | Bottle |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,978) 4.6 out of 5 stars |
| Global Trade Identification Number | 00071153785953, 10071153184111 |
| Included Components | STP Auto Performance Aid |
| Item Highlight | High Mileage Oil Treatment, Helps Stop Engine Leaks, Rejuvenates Seals & Gaskets, For Vehicles Over 75K Miles |
| Item Type Name | Auto Performance |
| Item Weight | 15.2 ounces |
| Liquid Volume | 15 fluid ounces |
| Manufacturer | STP |
| Manufacturer Part Number | 18411 |
| Model Number | 15604B |
| Size | 15 OZ |
| Unit Count | 15 Fluid Ounces |
| Upc | 071153785953 |
| Viscosity Level | High |
User
Best I've found
Worked better than expectedWould buy again for my next oil change
User
very good
very good
User
Stp stop leak for old cars
Since my car is older than my dorm RA’s playlist, I grabbed this STP high mileage oil treatment + stop leak for weekend grocery runs from campus. My Civic has like 180k miles and was starting to leave tiny oil spots where I park behind the dorm. I poured the whole bottle in when i changed the oil in the parking lot with my roommate watching TikToks. drove it around for a week and the little spots on the concrete are basically gone and the engine sounds smoother. I’m glad it’s thick enough that the engine doesn’t sound so rattly when I hop on the highway to go home.
User
Oil additives
Seems to work well
User
Oil leak sealer
This worked great sealed my leak
User
Smoother running engine
It works, engine also runs smoother.
User
Oil leak
Bought this because my car has a very small oil leak in the top somewhere. So far it doesn’t really seem to work too good.
User
Good
Good
User
Must be good & Genuine
Not yet used but have done my studies ....Must be good & Genuine product
User
Work successfully
It Works great. But you have to driven 100 to200 km after pouring.
User
no good
Like this product. Never had a bad one. I had a problem with the engine
User
STP stop leak
Amazing products my car changed after two days runs smoothly and will see about the leak ? Looks good 👍🏻 for now
User
Great Stuff!
This is an excellent proven product. Works well if you have a worn valve stem seal problem.
Trustpilot
3 weeks ago
1 month ago