---
product_id: 13143690
title: "Lisle 75630 Test Fluid"
price: "AR$49760"
currency: ARS
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.ar/products/13143690-lisle-75630-test-fluid
store_origin: AR
region: Argentina
---

# Detects combustion leaks precisely Color-change indicator fluid 16 oz fluid volume for multiple tests Lisle 75630 Test Fluid

**Price:** AR$49760
**Availability:** ✅ In Stock

## Summary

> 🔍 Spot leaks before they spot you — stay ahead with Lisle’s color-changing test fluid!

## Quick Answers

- **What is this?** Lisle 75630 Test Fluid
- **How much does it cost?** AR$49760 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/13143690-lisle-75630-test-fluid)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Diagnosis:** Pinpoints head gasket leaks and cylinder bank issues with clear, proportional color changes.
- • **Compact & Ready-to-Use:** 16 fluid oz bottle fits easily in your toolkit for on-demand diagnostics.
- • **Instant Leak Detection:** Fluid shifts from blue to yellow on contact with combustion gases, eliminating guesswork.
- • **Compatible & Convenient:** Designed for use with Lisle 75500 Combustion Leak Detector for seamless testing.
- • **Reliable & Reproducible:** Consistent results on both hot and cold engines, trusted by pros and DIYers alike.

## Overview

Lisle 75630 Test Fluid is a 16 oz diagnostic liquid that changes color from blue to yellow when exposed to combustion gases, enabling precise detection of engine combustion leaks. Designed to work with the Lisle 75500 Combustion Leak Detector, it helps professionals and enthusiasts quickly identify head gasket and cylinder bank leaks, saving time and preventing costly repairs.

## Description

Detects Combustion Leaks on Engines. Use the leak detector fluid with the Lisle 75500 Combustion Leak Detector. Indicating fluid changes from blue to yellow when exposed to combustion gases in the radiator. Contains 16 fluid oz.

Review: Good product - Works as intended.
Review: Works like it is supposed to. - Used this to confirm what was pretty certain, a head gasket leak. Sure takes the guesswork and time out of detecting head gasket leaks. I was already 95% certain one or both head gaskets were leaking using cylinder compression and leakdown tests and radiator pressure test. I like the ability to shutdown a cylinder bank and test for a leaking head gasket on one head or the other. Caution, if you do this, you will most certainly trip computer codes and the engine service light on the dash. You need to be aware that you have to check that your code reader (if you have one) will reset the engine service light. Not all will. Many will clear codes but not reset engine service light so you may have to got to a shop to have light reset. Some car models can be manually reset or there is some trick to reset. One of the other anecdotal aspects of this test is that you can tell which cylinder bank is leaking faster or slower. The color change for my testing was gradual, ie it went from blue to green to yellow. This shows that the color change is relatively proportional to the amount and rate of leakage. The color change for the right bank was pretty quick and the color change for the left bank took several minutes. I ran this several times on both a hot and cold engine. The results were generally reproducible.

## Features

- Detects Combustion Leaks on Engines.
- Use the leak detector fluid with the Lisle 75500 Combustion Leak Detector.
- Indicating fluid changes from blue to yellow when exposed to combustion gases in the radiator.
- Contains 16 fluid oz.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000I17Z8Q |
| Best Sellers Rank | #30,767 in Automotive ( See Top 100 in Automotive ) #26 in Fuel Leak Detectors #833 in Diagnostic, Test & Measurement Tools |
| Brand | Lisle |
| Customer Reviews | 4.5 4.5 out of 5 stars (666) |
| Date First Available | July 7, 2004 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 10.4 ounces |
| Item model number | 75630 |
| Manufacturer | Lisle |
| Manufacturer Part Number | 75630 |
| Model | Lisle 75630 Combustion Leak Indicating Fluid |
| Product Dimensions | 6.3 x 4.3 x 2.2 inches |

## Images

![Lisle 75630 Test Fluid - Image 1](https://m.media-amazon.com/images/I/71SdNDYbJ4L.jpg)

## Available Options

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

## Questions & Answers

**Q: what pump can i use with it ? can you give me the picture of the pump , thank you**
A: Try ones like this: Hopkins 10803 FloTool Transfer Pump. Takes 2 hands, but otherwise cheap and effective. Comes with a hose that connects directly without fittings.

**Q: What is the difference between the diesel and gasoline combustion gas tester fluid?**
A: Did not find that particular brand to work very well for diesel. Have used other brands which are combustion chamber leak detectors which work for both gas and diesel. The difference between a gas and diesel detector would be in the chemical formulation.

**Q: I don't have a radiator cap on my radiator So will it work on my overflow? Or what would you recommend**
A: Your  car has a degas bottle. Yeah it will work on that

**Q: Can it detect co2 in coolant? What is the average for success by testing?**
A: Yes, it tests for carbon dioxide and carbon monoxide in your coolant.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product
*by D***. on November 23, 2025*

Works as intended.

### ⭐⭐⭐⭐⭐ Works like it is supposed to.
*by A***G on July 21, 2010*

Used this to confirm what was pretty certain, a head gasket leak. Sure takes the guesswork and time out of detecting head gasket leaks. I was already 95% certain one or both head gaskets were leaking using cylinder compression and leakdown tests and radiator pressure test. I like the ability to shutdown a cylinder bank and test for a leaking head gasket on one head or the other. Caution, if you do this, you will most certainly trip computer codes and the engine service light on the dash. You need to be aware that you have to check that your code reader (if you have one) will reset the engine service light. Not all will. Many will clear codes but not reset engine service light so you may have to got to a shop to have light reset. Some car models can be manually reset or there is some trick to reset. One of the other anecdotal aspects of this test is that you can tell which cylinder bank is leaking faster or slower. The color change for my testing was gradual, ie it went from blue to green to yellow. This shows that the color change is relatively proportional to the amount and rate of leakage. The color change for the right bank was pretty quick and the color change for the left bank took several minutes. I ran this several times on both a hot and cold engine. The results were generally reproducible.

### ⭐⭐⭐⭐⭐ NIASE MASTER TECH REVIEW
*by P***. on December 16, 2021*

NIASE MASTER TECH REVIEW Good value4 professionals. Purchased this item after a once over. I found it effective w/1 caveat. Be careful not 2allow fluids2 enter the intake during testing. This could result in a catastrophic fluid lock of any effected cylinder. In my case the blue color was already rapidly fading when a large bubble erupted directly into the cylinder pushing the test reagent &a considerable column of water up toward the top& out into the intake! I promptly shut the engine down2 avoid damage. BTW, if u c bubbles in the coolant reservoir, creamy white discharge on the engine oil dipstick or the same in the coolant; then u don't need the comfirmation granted by this kit. Any 1or all of the3 ARE comfirmation of a blown head gasket, or of a cracked head, or of a cracked engine block.

## Frequently Bought Together

- Lisle 75630 Test Fluid
- OEMTOOLS 37145 Combustion Leak Detector, Plastic and Rubber Tester for Engine Block Leaks, Automotive Blown Head Gasket Test, Block Test Kit

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**Shop now:** [https://www.desertcart.com.ar/products/13143690-lisle-75630-test-fluid](https://www.desertcart.com.ar/products/13143690-lisle-75630-test-fluid)

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-01-23*