Calculated my mpg yesterday. The result 30.?? mpg. I tend to sit around the 36/37 mpg mark but the last fill has been the lowest yet. I have tried a few different fuels, but persoanlly prefer Tesco pumps for the money ?

I have recently fitted a Green Cotton filter, but covered 1200 miles since fitting, so i assume it isn't that.

I drive the car hard, once warm, all the time. But as i said 36/37 is the norm, but it has taken quite a dip ???

Any thoughts ?

i cant get above 50mpg now average no matter how easy i take it

I've also noticed a dip lately and my last tank was down to 45mpg (based on at the pump calculations). I put it down to doing an extra 50 miles a day on clear motorways, but it may also be down to the air con working harder too?

Chris

Drive it gentle and use overrun if you want better mpg, this should return mid 50's - if it doesn't perhaps there's a problem.

I can and mines tuned. But only really on a motorway cruise where I can get about 55-57mpg though normally around town it's in the low 40's

Drive it gentle and use overrun if you want better mpg, this should return mid 50's - if it doesn't perhaps there's a problem.

As i said. I drive the car hard. That is how i drive !

I usually get 36/37 driving how i always drive. The last tank of fuel i achieved 30 mpg.

I am aware lighter driving will improve my mpg, but i was wondering why i would have a dip though given my normal route and driving technique hasn't changed ?

By being gentle for a day or two you can see what it will return as a maximum (or a good effort at least), thereby determining whether it is your driving or a problem.

Change in weather, maybe it was hotter?