Does it work with diesel engines?

I think it will work but may turn green rather than yellow. There are fluids designed for Diesel engines and I believe those are red in colour.

is this safe for the coolant system? i have it and i think some got sucked into the coolant tank

Yes, It's safe for the coolant system if you use the liquid in accordance with the instructions.

How can I use this if my radiator does not have a cap?

It should go into the opening for the cap on the overflow bottle which should be where you can top up the coolant level.

think if you put this on during warm up it will give a false negative. Doesnt do full green but very very light blue due temp chemical react ?

I used it on my Capri and had it in place from start up. I ran the car until the thermostat opened and the car was operations at full temp. Thankfully there was no colour change at all. Shouldn’t give a false negative and shouldn’t react with temperature. Only if the system contains exhaust gasses.

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Reld Cylinder Head Gasket Tester Kit CO2 Combustion Leak Gas Test Universal for All Cars and Motorcycles Petrol Diesel Block Rapid Engine Leak Detector for 50 Tests

Reld Cylinder Head Gasket Tester Kit CO2 Combustion Leak Gas Test Universal for All Cars and Motorcycles Petrol Diesel Block Rapid Engine Leak Detector for 50 Tests

Product ID: 136048058

Details

Alarm
Visual
Brand
RELD
Colour
Multicoloured
Global Trade Identification Number
Item weight
240 Grams
Operating humidity
90 percent

🔧Universal adapter fits 25-55mm engines

⏱️99.9% efficiency rapid test

🛠️50 reliable CO2 leak tests included

R1119

Duties & taxes included

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Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Diagnose like a pro, save like a boss!

VISUAL ALARM INDICATOR - Instant visual alerts ensure you never miss a critical leak during testing.
UNIVERSAL COMPATIBILITY - Works seamlessly on cars, trucks, motorcycles, and heavy machinery with a wide adapter range.
PRECISION LEAK DETECTION - Achieve near-perfect 99.9% accuracy in identifying cylinder head gasket failures.
MECHANIC FREE DIAGNOSTICS - Save time and money by testing your gasket yourself without a garage visit.
DURABLE EUROPEAN CRAFTSMANSHIP - Proudly made in the EU with trusted RELD quality for long-lasting reliability.

The Reld Cylinder Head Gasket Tester Kit offers a fast, reliable, and universal solution for detecting CO2 combustion leaks in petrol and diesel engines. Featuring a 99.9% efficiency rate, a wide 25-55mm adapter range, and 50 tests per kit, it empowers vehicle owners to perform professional-grade gasket leak diagnostics at home, avoiding costly mechanic visits. Made in the EU with trusted RELD quality, this compact, battery-powered tool delivers visual alarms for instant results across cars, motorcycles, trucks, and heavy equipment.

Specifications

ASIN	B07RS3N98V
Alarm	Visual
Best Sellers Rank	2,372 in Automotive ( See Top 100 in Automotive ) 108 in Diagnostic, Testing & Measuring Tools
Brand	RELD
Colour	Multicoloured
Country of Origin	Poland
Customer Reviews	4.5 4.5 out of 5 stars (7,955)
Global Trade Identification Number	05907440789067
Item Dimensions D x W x H	17D x 9W x 5H centimetres
Item Weight	240 Grams
Manufacturer	RELD
Model Number	7777252
Operating Humidity	90 percent
Part Number	7777252
Power source	Battery-Powered, Corded Electric, Solar
Product Style	Classic
Unit Count	1.0 count

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R1119

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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