I've worked out over the past few weeks that I'm spending £75 a week on petrol. I travel pretty much bang on 240 miles a week.

According to this fuel cost calculator my car is doing 19mpg. 

The onboard computer says I'm averaging 29mpg and tells me that on a good run I'm averaging 36-38mpg.

W
T
F

Ouch that's not good, thats nearly £4k a year in fuel costs alone!

I'm sad in that I write down my mileage and zero the trip when I fill up then plug the numbers into a spreadsheet, for the entire of last year I spent just under £600, but I only did 4800 miles admittedly I only had a 1.4 TDCI Fiesta at the time (got a 1.6 TDCI Eco Fiesta at the begining of Jan) but what are you driving?

I swear my car is getting worse on MPG, I must be getting 20-25mpg at best. I'm positive I'm no heavier with my right foot than usual either.

i get 450-550 miles a full tank
MPG is reported as 44.7
dont really care as I get paid per mile. Hence I got rid of my l200 truck & now drive a citreon C4 diesel - for the MPG
twice the mileage per tank & £25 cheaper to fill

Your real-world MPG average is 20.82

what soopah said, you forgot to type in the price/litre into that calculator


as a side note, I'm swapping over to petrol vans and getting them converted to mains gas (not lpg, mains gas)

spending 600 to 700 a week on diesel and I begrudge paying every penny of it !

I'm running a Corsa Diesel, don't know what the MPG is, but i put £20 in every now and then and it goes on and on. 

Hated crushing my MK4 Astra but then look how much cash i'm saving.

If you want an easy way to track it use Fuelly.

Jaimz