Read it and weep.
As Aaron said on the first post, this was quite a hard challenge to stick to, not to mention boring. It was amazing just how slow it felt going 70mph, not because I am so used to bombing along, but because everyone else was bombing past me at ridiculous speeds. Does anyone stick to the speed limits these days?
I would be tooting along at 70mph and I was able to look about more, noticing things I hadn’t even seen previously. An added benefit to watching your speed: you get to sightsee more. 
So how did it all work out then? Well from the chart you can see that I did 39 more miles, it used 2.2l more fuel and returned just about 10mpg more. I used the MPG calculator here to calculate these figures.
So in the end was it worth it? Well I have to say yes. It got me further on less fuel and I was able to relax a bit more on the journey. It would save me £300 a year as well which may not seem like much but it’s something.
Hope you found it useful!
Gordon
