---
product_id: 323267495
title: "STP 78568-12PK Complete Fuel System Cleaner - 5.25 fl. oz. (case of 12)"
brand: "stp"
price: "$295.51"
currency: USD
in_stock: false
reviews_count: 5
category: "Stp"
url: https://www.desertcart.us/products/323267495-stp-78568-12pk-complete-fuel-system-cleaner-5-25-fl
store_origin: US
region: United States of America
---

# Cleans entire fuel system Restores engine performance Inhibits corrosion STP 78568-12PK Complete Fuel System Cleaner - 5.25 fl. oz. (case of 12)

**Brand:** stp
**Price:** $295.51
**Availability:** ❌ Out of Stock

## Summary

> ⛽ Drive cleaner, perform stronger — fuel your engine’s comeback!

## Quick Answers

- **What is this?** STP 78568-12PK Complete Fuel System Cleaner - 5.25 fl. oz. (case of 12) by stp
- **How much does it cost?** $295.51 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/323267495-stp-78568-12pk-complete-fuel-system-cleaner-5-25-fl)

## 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

- • **Corrosion Defense:** Protects your engine components from rust and wear
- • **Fuel Economy Booster:** Helps save gas by optimizing fuel intake and combustion
- • **Maximum Detergent Power:** Highest detergent concentration for deep fuel system cleaning
- • **Cap-less Tank Compatible:** Seamlessly works with modern fuel systems without hassle
- • **Comprehensive Engine Care:** Targets injectors, carburetors, valves, and combustion chambers for peak efficiency

## Overview

STP 78568-12PK Complete Fuel System Cleaner delivers the highest detergent level in STP’s lineup, effectively removing deposits from the entire fuel system including injectors, carburetors, and combustion chambers. This advanced formula restores engine performance, improves fuel economy, and inhibits corrosion, all while being compatible with cap-less fuel tanks. Each 5.25 fl. oz. bottle treats up to 15-21 gallons of fuel, making it a powerful, convenient solution for maintaining your vehicle’s peak condition.

## Description

This STP Complete Fuel System Cleaner contains the highest level of detergents of any STP formula It helps clean your entire fuel system to restore its optimum operating condition The advanced formula helps clean fuel injectors carburetors intake valves and ports combustion chambers cylinder heads and piston tops It contains jet fuel a high-quality carrier of active ingredients

Review: I was confused why the small bottle treated almost as many gallons as the larger bottle so I called STP. According to them it is a slightly stronger concentration of cleaning agent vs. the larger bottle. However this is the old spec, they have recently changed the concentration so going forward the small bottles listed in this product page will only treat up to 15 gallons. So if you do purchase make sure when you get the bottles you check to treatment listed to see which concentration you received. The ones I got were the previous generation treating up to 21 gallons which works for me.
Review: 😲Now that we're Energy Dependent again,... I can no longer afford to fuel up with Costco Premium Detergent Gasoline (Cleaner for the Environment) instead, I have to use "Regular" (Worse for the Environment) >> ADD a bottle of STP Fuel System Cleaner at this price, and it's like putting in Premium Gas >> HINT: ADD contents to the tank BEFORE you fuel up. The incoming stream will "mix" the contents into the tank for you. Adding the additive AFTER you fuel up, and it sits on top of the volume. Driving may agitate the mix for you, but probably not enough to be consistent.

## Features

- Save gas by keeping fuel intake system clean
- Helps restore performance
- Removes deposits from entire fuel system
- Helps inhibit corrosion
- Compatible with cap-less fuel tanks

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00C183QMS |
| Brand | STP |
| Customer Reviews | 4.2 4.2 out of 5 stars (30) |
| Date First Available | 2 September 2014 |
| Item Weight | 2.18 Kilograms |
| Item model number | 78568-12PK |
| Manufacturer | STP |
| Manufacturer Part Number | 78568-12PK |
| Product Dimensions | 3.81 x 5.72 x 20.32 cm; 2.18 kg |

## Images

![STP 78568-12PK Complete Fuel System Cleaner - 5.25 fl. oz. (case of 12) - Image 1](https://m.media-amazon.com/images/I/81dkRURC+VL.jpg)
![STP 78568-12PK Complete Fuel System Cleaner - 5.25 fl. oz. (case of 12) - Image 2](https://m.media-amazon.com/images/I/91LQ+kbVm1L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by D***C on 28 June 2024*

I was confused why the small bottle treated almost as many gallons as the larger bottle so I called STP. According to them it is a slightly stronger concentration of cleaning agent vs. the larger bottle. However this is the old spec, they have recently changed the concentration so going forward the small bottles listed in this product page will only treat up to 15 gallons. So if you do purchase make sure when you get the bottles you check to treatment listed to see which concentration you received. The ones I got were the previous generation treating up to 21 gallons which works for me.

### ⭐⭐⭐⭐ Review
*by A***M on 24 October 2023*

😲Now that we're Energy Dependent again,... I can no longer afford to fuel up with Costco Premium Detergent Gasoline (Cleaner for the Environment) instead, I have to use "Regular" (Worse for the Environment) >> ADD a bottle of STP Fuel System Cleaner at this price, and it's like putting in Premium Gas >> HINT: ADD contents to the tank BEFORE you fuel up. The incoming stream will "mix" the contents into the tank for you. Adding the additive AFTER you fuel up, and it sits on top of the volume. Driving may agitate the mix for you, but probably not enough to be consistent.

### ⭐⭐⭐⭐⭐ Review
*by J***N on 26 October 2024*

Product was delivered on time and undamaged.

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---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-07*