Join Date: 20th April 2019
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So got a 63 plate 1.6 DTEC Civic, 40k miles. I do huge mileage so have done 2500 miles since owning it just shy of a month and have to say the economy is insane.
I have tested how it scales with speed and am blown away.
At 55-60 mph indicated I can get 82-85mpg
At 60-65 mph indicated I can get 78-82mpg
At 65-70 mph indicated it starts to get to the 74-77mpg range.
I tend to stick to 62-65mph as its best for efficiency and not being a slow annoying prick lol.
These are all 700 mile runs - not just doing the speed for a little bit and seeing the reading. I reset the trip and got readings for 700 mile averages, which I think is certainly representative. The average fuel after 400 or so miles changes by 0.2 mpg max on a 50 mile journey, so is centering into the true average halfway into that 700 mile dataset.
The real figures aren't too bad either - they're only 5% out at most, and as the fuel pump stop mechanism isn't exactly identical each time, it could argued the error window is there as well.
Drive back today managed to see a new range of 904 miles on a full tank. I realistically get about 835-850 depending on driving style.
I guess it depends on the journey but I have a dozen or so mild inclines and have to say the "sweet spot" is about 62mph in 6th gear - it climbs the hill without draining the mpg bar much - always sits at 70-75mpg, and some are quite steep.
Touch wood the car has run amazingly well and I have literally halved my monthly fuel costs.
Usually I am dubious about mpg figures companies state but Honda seems to have lived up to their 78-80mpg claims. It isn't far off doing 75mph odd.
Bravo Honda! My wife has had one since 2012 odd so knew it is a good company for cars but they have surpassed my already high expectation.
Last edited by TwistedHelix; 24th May 2019 at 14:43.