FEATURES:

• fresh stock, sensitive, made in the UK
• compatible with all makes of Combustion Leak Detectors/ Sniff Testers/ Block Tester Kits
• detects exhaust gases in radiators or expansion tanks
• works best with PETROL/LPG engines (for diesel engines we recommend red fluid FX-600 )
• non-toxic, environmentally friendly
• long shelf life (2 years minimum)

DESCRIPTION:

FX-500 Blue test fluid suitable for Petrol / Lpg engines, works well with all makes of combustion leak detectors, block testers or sniff testers. 

It detects exhaust gases in the cooling system, in the presence of these gases, the fluid changes colour from blue to yellow indicating head gasket damage, warped cylinder head or cracked engine block. 

Why is it not suitable for DIESEL engines?

In DIESEL engines the blue fluid will change colour to green due to different gas composition and lower gas concentration. The green colour also can be caused by other factors, e.g.: 

• contamination with coolant
• long testing time
• prolonged exposure to high temperature from the coolant

Red fluid is more sensitive, thanks to that it performs better with DIESEL ENGINES than the BLUE one.

Higher sensitivity is crucial due to different exhaust gas composition in Diesel engines. 

1x500ml FX-500 PETROL / LPG Test Fluid for Combustion Leak Detectors / Head Gasket Testers / Block Testers