---
product_id: 11780355
title: "STP High Mileage Oil Treatment + Stop Leak, Improves Car Oil, 15 Fl Oz"
brand: "stp"
price: "$19.32"
currency: USD
in_stock: true
reviews_count: 13
url: https://www.desertcart.us/products/11780355-stp-high-mileage-oil-treatment-stop-leak-improves-car-oil
store_origin: US
region: United States of America
---

# Stops leaks & rejuvenates seals ZDDP anti-wear additive 15 FL OZ high-viscosity formula STP High Mileage Oil Treatment + Stop Leak, Improves Car Oil, 15 Fl Oz

**Brand:** stp
**Price:** $19.32
**Availability:** ✅ In Stock

## Summary

> 🚗 Keep your high-mileage engine young, quiet, and leak-free—because your ride deserves the best!

## Quick Answers

- **What is this?** STP High Mileage Oil Treatment + Stop Leak, Improves Car Oil, 15 Fl Oz by stp
- **How much does it cost?** $19.32 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/11780355-stp-high-mileage-oil-treatment-stop-leak-improves-car-oil)

## Best For

- stp enthusiasts

## Why This Product

- Trusted stp brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Leak-Stopping Power:** Rejuvenates seals and gaskets to prevent leaks, noise, and smoke—keep your engine tight and quiet.
- • **Thick Viscosity Cushion:** Creates a protective barrier reducing metal-to-metal friction for smoother rides.
- • **Engine Armor for 75K+ Miles:** Specifically engineered for high-mileage vehicles to extend engine life and performance.
- • **Routine Maintenance Essential:** Add with every oil change to maintain peak engine health and avoid costly repairs.
- • **Universal Fit for Cars & SUVs:** Compatible with cars, light trucks, and SUVs—one solution for your entire fleet.

## Overview

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.

## Description

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.

## Features

- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| 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 |

## Product Details

- **Brand:** STP
- **Liquid Volume:** 15 fluid ounces
- **Package Information:** Bottle
- **UPC:** 071153785953
- **Vehicle Service Type:** Car

## Images

![STP High Mileage Oil Treatment + Stop Leak, Improves Car Oil, 15 Fl Oz - Image 1](https://m.media-amazon.com/images/I/71xCSBdLnsL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Will this help stop any valve train components from making sounds? Like ticking coming from the valve train?**
A: It stopped my car from running, altogether, and cost $1000 for a complete bypass of the system to be installed after cleanout. So yeah, it would probably stop your engine from making any sounds.

**Q: Es bueno para motocicleta**
A: No es bueno por que el aceyte se ase más espeso y el motor de la motocicleta es pequeño y no funcionaria

**Q: Que cantidad se debe hechar po cada cambio**
A: Thank you for submitting your question, At every oil change, add one bottle of the product to 4-5 quarts or liters of oil, either at or between oil changes. For any further information please reach out to us on 800-776-1530 or autohelpline@energizer.com to assist you better. STP Consumer Services. Thank you!

**Q: Can this be used on diesel engines?**
A: Thank you for submitting your question! 
The product is mainly compatible and tested on gasoline engines.
For any further information please reach out to us on or email us on customersupport@energizer.com and 1-800-383-7323 to assist you better.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best I've found
*by  on Reviewed in the United States August 2, 2026*

Worked better than expectedWould buy again for my next oil change

### ⭐⭐⭐⭐⭐ very good
*by  on Reviewed in the United States September 6, 2026*

very good

### ⭐⭐⭐⭐⭐ Stp stop leak for old cars
*by  on Reviewed in the United States August 11, 2026*

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.

## Frequently Bought Together

- STP High Mileage Oil Treatment + Stop Leak Engine Oil Additive, 15 fl oz, Contains ZDDP Anti-Wear Agent to Fight Friction, Rejuvenates Seals and Gaskets, Stops Leaks
- Valvoline High Mileage with MaxLife Technology SAE 5W-30 Synthetic Blend Motor Oil 5 QT

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-09-29*