Quote Originally Posted by angrybear View Post
Different shops in different areas charge different amounts, iirc someone recently said they had just had a test done for either £10 or £15 Merseyside area.

I paid £30 about 4 years ago, so next year expect it will be £40+.
Yep, I had 2 cylinders done last month at £15 each to include full refill at CTS, Speke, Liverpool.