Just to let you CT200h owners know I have been having an issue with high fuel consumption I.e 33 mpg at best and being an ex mechanic I was looking to sort this problem out myself but alas after quite a few attempts I decided to go to my local Lexus dealer and speak to one of their mechanics, I was in fact quite shocked by what he told me, the first thing he told me was to check my 12v battery was good, this I did and found it to be defective he then said because their was a cell or two down in the 12v battery this would keep the engine running considerably longer in order to try to fully charge it without actually being able to. Anyway I have now replaced my 12v battery and Abracadabra back up to 53 mpg around town so one happy chappie. One worth knowing for future reference for all Lexus owners.