03-08-2018, 09:23 AM
(01-07-2018, 06:42 AM)Poodle Wrote: Cruise control is awful for mpg.
In theory yeah...in practice it doesn't make any difference having rerrofitted cruise to a few of my cars and keeping spreadsheets of the MPG across each tank both before and after lol.
Interestingly I now have a 2.0 CR TDI 140...fully working air con unlike the Focus and obviously more power and cubic capacity than the DV6...and so far averaging 55-60mpg just like every other turbo diesel I've had!
The main issue for me is the frequency of short drives though. On the daily mpg readout I can easily achieve 70mpg on an hour's round trip. But on the short runs to Tesco it's more like 50mpg. I know the readout isn't 100% hence working out the tank with the brim test but I'm not filling up every day just to test that lol.
I still don't see how driving style changes anything, I spend most of my time stuck behind other people, forcing me to use higher revs in a lower gear and having to keep slowing down and accelerating because they can't keep a constant speed or see non existent hazards, it's more efficient to overtake them and stick the cruise on where possible. The Orwell bridge winds me up no end, people seem to forget to accelerate on the up hill side, meaning I have to drop from 60 to 40 as it's frowned upon to ram them, then they wake up and boot it, so the rest of us have to waste a load of fuel accelerating from half way up the hill. When it's clear I just leave the cruise on at 60, don't even touch the throttle before the hill and still lose far less mpg than being stuck behind other people. Other people are the problem here...I get much more mpg going out on evening drives than day time drives...I don't even drive in rush hour!