---
product_id: 238844056
title: "Block Tester BT-600 Replacement Combustion Leak Test Fluid 16 Oz"
brand: "block tester"
price: "VT4366"
currency: VUV
in_stock: false
reviews_count: 7
url: https://www.desertcart.vu/products/238844056-block-tester-bt-600-replacement-combustion-leak-test-fluid-16
store_origin: VU
region: Vanuatu
---

# Compatible with gas, diesel & alternative fuels Instant color change detection 16 oz fluid for 16 precise tests Block Tester BT-600 Replacement Combustion Leak Test Fluid 16 Oz

**Brand:** block tester
**Price:** VT4366
**Availability:** ❌ Out of Stock

## Summary

> 🧪 Detect leaks before they detect you — stay ahead with BT-600!

## Quick Answers

- **What is this?** Block Tester BT-600 Replacement Combustion Leak Test Fluid 16 Oz by block tester
- **How much does it cost?** VT4366 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/238844056-block-tester-bt-600-replacement-combustion-leak-test-fluid-16)

## Best For

- block tester enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Lightweight:** At just 0.28 g and under 7 cm dimensions, it’s easy to store and transport for on-the-go diagnostics.
- • **Instant Leak Detection:** Fluid shifts from blue to yellow on contact with combustion leaks, delivering clear, immediate results.
- • **Reliable 16-Test Capacity:** Each 16 oz bottle powers up to 16 accurate combustion leak tests, maximizing value and efficiency.
- • **Optimized for Block Tester:** Specifically designed for Block Tester brand testers but versatile enough for other fluid-based leak testers.
- • **Universal Fuel Compatibility:** Works seamlessly with gasoline, diesel, propane, CNG, and other alternative fuels—one fluid for all your engines.

## Overview

The BT-600 Replacement Combustion Leak Test Fluid is a 16-ounce solution engineered for up to 16 precise tests. Compatible with Block Tester devices and other fluid-based testers, it works across gasoline, diesel, propane, CNG, and alternative fuels. Its color-changing formula instantly signals combustion leaks by turning from blue to yellow, empowering professionals to diagnose engine issues swiftly and confidently.

## Description

Block Tester BT-600 Replacement Combustion Leak Test Fluid 16 Oz

## Features

- 16 ounces / 474 ml (good for 16 tests in Block Tester brand combustion leak tester)
- Use in Block Tester brand combustion leak tester or other fluid-based leak testers
- Works with GAS or DIESEL engines as well as propane, CNG, and other alternative fuels
- When fluid turns from BLUE to YELLOW combustion leak is present

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Block Tester |
| Brand | Block Tester |
| Model | BT-612 |
| Product Dimensions | 6.99 x 6.99 x 18.11 cm; 0.28 g |
| Item model number | BT-600 |
| Manufacturer part number | BT-600 |
| Item Weight | 0.28 g |

## Images

![Block Tester BT-600 Replacement Combustion Leak Test Fluid 16 Oz - Image 1](https://m.media-amazon.com/images/I/511fLS-pUBL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Unbelievable product
*by R***S on 29 May 2025*

Does as it should the best brand there is out there for testing exhaust emissions in the coolant to see if the headgasket is gone

### ⭐⭐⭐⭐⭐ does exactly what it says
*by S***R on 1 May 2025*

I own a garage and do these tests all day long. Works just the same as the more expensive stuff and came next day :-)

### ⭐⭐⭐⭐⭐ Block tester
*by A***D on 6 May 2025*

A good item easily used with good results

## Frequently Bought Together

- Block Tester BT-600 Replacement Combustion Leak Test Fluid 16 oz
- OEMTOOLS 37145 Combustion Leak Detector, Plastic and Rubber Tester for Engine Block Leaks, Automotive Blown Head Gasket Test, Block Test Kit
- RELD Head Gasket Tester Kit Combustion Leak Detector for 50 Tests

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**Shop now:** [https://www.desertcart.vu/products/238844056-block-tester-bt-600-replacement-combustion-leak-test-fluid-16](https://www.desertcart.vu/products/238844056-block-tester-bt-600-replacement-combustion-leak-test-fluid-16)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-03-10*