My car can manage 42mpg on a long motorway run at around 70mph. Short journeys vary between 25-28mpg depending on winter or summer.
It went in yesterday for 12 month service, injector change, remap of ecu and alloy wheel replacement. Has not been returned yet as ecu locked up when being worked on. New ecu due next wednesday so will find out then of any improvement.
Are you having the 5th injector changed or the whole lot? If it is the lot was there a specific problem that made your dealer decide to do this? My dealer told me that they have changed the 5th injector on a few cars but only after there was a problem with the engine management system when it went into limp home mode and the problem was directly caused by this injector. My car has over 11000 miles on the clock and the fuel consumption, which I was told would get better the more miles went on the clock, is getting worse. This car just does not do what it says on the tin i.e. combined fuel consumption of 44.8. But then what can you expect from a car that shares (among other things) a start/stop button with a Yaris. Is this Lexus taking the p :tsktsk: or what