Which colour should you choose?

Comma has taken a sample of 14 coolants from 14 main dealers, none of which were the same colour. This experiement shows that there is no real difference between coolants and esentially there can only be 2 options for your vehicle.  

The colour in a coolant is just a dye, it gives no indication of quality or type of inhibitor technology used. There are 2 main types of coolant technology vehicle manufacturers specify.

1. OAT Based Organic Acid Technology - Silicate Free Covers 70% of new vehicles Covers over 2000 models Protects from Corrosion Protects from Erosion Protect from Over Heating & Freezing

2. Silicate Based Nitrite, Amine & Phosphate Free Covers 30% of new vehicles Covers 1800 models Protects from Corrosion Protects from Erosion Protect from Over Heating & Freezing

Coolants inhibitor package will be depleted after 3 to 5, leaving the system unprotected. If you are unsure how old it is, Drain, Fluch and Refill. Refilling the system can just take 10 minutes with the right equipment.