TJ101 wrote:

Biggest error is down to what tyres you are running, My last few thousand has been with the 255/85's on,, so my trip is about right,, On standard tyres, you are in fact doing more miles than the trip says

On standard tyres surely it is more accurate

Oversized tyres will throw it for sure. Andy

mrwoo wrote:

The biggest saving for me (like with most vehicles) was changing my driving style so that I accelerated gently and changing up at around 2>2.2k rpm's. I spend most of my time around 55mph on A roads but I do go up to 70 on motorways. Another thing that I haven't mentioned before on this thread anyway is that a use fully synthetic oil, a version that is supposed to be good for fuel efficiency and meets all of fords requirements.

http://www.opieoils.co.uk/p-991-fuchs-tita...e-oil.aspx

There is always 2 schools of thought with this - one keep the revs high and two keep the revs low.

Smooth is about the only common sense one. ALthough i dont care much...dare i say give me my fuel before it all runs out

Anyway back to MPG i use this site http://www.robinwhite.fsnet.co.uk/conv/mpg.htm and i know that it returns me around about 27mpg for my fueling and driving with all the kit on.

I like the measuring technique of fill up and measure miles then refill problem is this:
1) you never put the same amount in
2) when you put just a little in and refill your mpg will go up!

on point 2 i have done this on our 4 cars and if i fill up do about 50 - 100 miles refill and measure the mpgs are really high, especially the lower miles you have done Mike

mse wrote:

I like the measuring technique of fill up and measure miles then refill problem is this:
1) you never put the same amount in
2) when you put just a little in and refill your mpg will go up!

Ads90 wrote:

mse wrote:

I like the measuring technique of fill up and measure miles then refill problem is this:
1) you never put the same amount in
2) when you put just a little in and refill your mpg will go up!

This is true, but the point is that over 1000s of miles it will give you quite an accurate average.
I.e. if after 10 fill-ups, you have put in a total of 470-odd litres (fill-to-fill) and recorded 3000-odd miles, the initial re-fueling innaccuracy will be negligable.
So you keep track of all miles & all litres.

I agree - i use this method, so have no complaints and when i want to fool myself into at 38mpg figure i wait until 20 miles and fill up  Mike

mrwoo wrote:

I fill mine to 1" of the filler cap every time, so there must only be 200ml or so in it each time

This is the most accurate way (for a single reading) - although when I tried it, I ended up with diesel flavoured strides all day, so I don't any more!

mrwoo wrote:

I fill mine to 1" of the filler cap every time, so there must only be 200ml or so in it each time

Nidge wrote:

How much would the faulty fuel switch have effected my fuel consumption ?
Nidge.

No idea ?? but will be interested to see if you notice any difference,,
They keep telling me, their is nothing they can change/fix/adjust, to affect the fuel consumption  California F1, 75th 110 "Kermit", 50th Ann V8, 90 V8 Hybrid, 55 Series 1

Main Brian James Trailer Dealer for South West UK