Engine issue, can anyone help?

[StarBenn]

16 pence a mile is crap lol, I'd expect that from a GTi6! Mine is (was) 10 pence a mile at ~60mpg on diesel at £1.42 litre. You're only doing roughly around 40mpg then.

I also wouldn't say 140k is 'nothing' for any engine, yes even a diesel. Fair enough if it's all motorway miles and serviced regularly with decent stuff.......but 140k of hard driving, with bugger all maintenance is a hell of a lot!

lol. I thought it should have been about 10p tbh from what I worked out, I usually have to do a few full tanks to work out the average as it isn't very accurate and varies a a fair bit between, depending how full I get the tank and other stuff like traffic jams, which are now less after summer holidays finished.
I'll let you know what happens at the garage & I'll carry on calculating fuel usage.