MPG taking a dive
I bought the car (145 1.8TS) in April and got about 27mpg. I am okay with 27 mpg, just not happy with a downward trend. It is completely standard, no mods. Since then I have replaced front tyres, had a service (inc new filters and plugs), had the cam belt and variator done, and run a tankful with STP injector cleaner additive. I am now getting 23 mpg.
I drive a mixture of town, country and motorway. I am very lightfooted around town, never speed or aaccelerate hard, but go a bit less frugally out of town.
I frequently check tyre pressure.
Has anyone any idea what i should expect (naturally I am ignoring Alfa figures), and what if anything (apart from it being an uneconomical car and a lousy driver)could explain this.
As far as i can tell the car is in top condition mechanically. Has 61 000 miles on the clock (I have done 7000 in it) and has a full service record.
(final thought, I suppose having the variator done could worsen things).
All suggestions gratefully received