---
product_id: 11780355
title: "High Mileage Oil Treatment + Stop Leak - 15 FL OZ"
brand: "stp"
price: "€ 23.16"
currency: EUR
in_stock: true
reviews_count: 8
category: "Stp"
url: https://www.desertcart.hr/products/11780355-high-mileage-oil-treatment-stop-leak-15-fl-oz
store_origin: HR
region: Croatia
---

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

**Brand:** stp
**Price:** € 23.16
**Availability:** ✅ In Stock

## Summary

> 🛠️ Keep your high-mileage engine running like new—because your ride deserves the best!

## Quick Answers

- **What is this?** High Mileage Oil Treatment + Stop Leak - 15 FL OZ by stp
- **How much does it cost?** € 23.16 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/11780355-high-mileage-oil-treatment-stop-leak-15-fl-oz)

## 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 smoking—keep your engine tight and quiet.
- • **Easy Maintenance Boost:** Simply add during every oil change to maintain peak engine health without hassle.
- • **Thick Viscosity Cushion:** Creates a protective barrier that reduces metal-to-metal friction for smoother operation.
- • **Engine Armor for 75K+ Miles:** Specifically formulated for high-mileage vehicles to extend engine life and performance.
- • **Trusted by Pros & Enthusiasts:** With 4.6 stars from 1,700+ reviews, it’s the go-to choice for cars, light trucks, and SUVs.

## 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 moving parts. It also rejuvenates seals and gaskets to stop leaks, noise, and smoking, improving overall engine performance. Ideal for cars, light trucks, and SUVs, it’s 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.

Review: Works - Works as expected
Review: Price - STP is always a good product.

## 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 |
| Best Sellers Rank | #4,663 in Automotive ( See Top 100 in Automotive ) #50 in Tire Repair Tools |
| Brand | STP |
| Brand Name | STP |
| Compatible with Vehicle Type | Car |
| Container Type | Bottle |
| Customer Reviews | 4.6 out of 5 stars 1,732 Reviews |
| Global Trade Identification Number | 00071153785953, 10071153184111 |
| Included Components | STP Auto Performance Aid |
| Item Type Name | Auto Performance |
| Item Weight | 0.95 Pounds |
| Liquid Volume | 15 Fluid Ounces |
| Manufacturer | STP |
| Manufacturer Part Number | 18411 |
| Package Information | Bottle |
| UPC | 071153785953 |
| Unit Count | 15.0 Fluid Ounces |
| Vehicle Service Type | Car |
| Viscosity | 50 sae_grade |

## Product Details

- **Brand:** STP
- **Liquid Volume:** 15 Fluid Ounces
- **Package Information:** Bottle
- **Vehicle Service Type:** Car
- **Viscosity:** 50 sae_grade

## Images

![High Mileage Oil Treatment + Stop Leak - 15 FL OZ - Image 1](https://m.media-amazon.com/images/I/81iwxeNlX1L.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

### ⭐⭐⭐⭐⭐ Works
*by J***E on December 10, 2025*

Works as expected

### ⭐⭐⭐⭐⭐ Price
*by J***. on October 16, 2025*

STP is always a good product.

### ⭐⭐⭐⭐⭐ Fixes 2 issues: Has ZDDP and leak stop
*by M***E on March 24, 2025*

i bought this because it has ZDDP, which my old engines require, and it has a seal additive to help reduce leaks which can be common in old engines. So this is a great product because it claims to deal with two issues. I will continue to buy this.

## 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 Croatia*
*Store origin: HR*
*Last updated: 2026-02-05*