Silverline Anti-Freeze Tester

A lack of instructions does this disc-type Silverline tester no favours.

Overall Auto Express Rating

2.0 out of 5

A lack of instructions does this disc-type Silverline tester no favours.

The bare essentials on the glass tube covers how to take a reading, but we’d have liked to see some warning on dealing with hot coolant.

It worked better than the similar Bluecol, proving accurate at the lower measurements, but under-reading protection at 50 per cent on both types of coolant.

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