SpiketheBike
Member
No but its mostly town driving.Busterboo said:
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Help, new here and after thoughts on a 100k e89
- Thread starter chilistrucker
- Start date
In over 3000 miles on my 23i manual i never managed over 35mpg & that was a 300mile m/way hike to Scotland .
Sat around 25mpg average for the majority of my ownership , Number 5 recently had the same car , pretty sure his numbers were similar too .
To compare the 35i manual i had mpg numbers were almost identical , the 23i does need some winding to gain momentum & suspect that's where the numbers soon fall
Sat around 25mpg average for the majority of my ownership , Number 5 recently had the same car , pretty sure his numbers were similar too .
To compare the 35i manual i had mpg numbers were almost identical , the 23i does need some winding to gain momentum & suspect that's where the numbers soon fall
SpiketheBike
Member
I've had 33/34 on motorways. But don't do enough long runs to up the overall average.
I wind my 35iS up quite a lot, am lucky to live near roads where n+40 & 50 is often possible for 20 or 30 miles, take it to n+60+ quite often, although never had it to its maximum, have some big hills to thrash it up to 7k revs in Sport+S, do the shopping at least twice a week, go shooting not far away through suburban traffic 3 or 4 days a week when it's not raining, use it for just messing about and so on. The one thing it rarely does, however, is long-haul, because that bores me and gives me cramp. In 30k miles in two years, the mpg display's never dropped below 25 fill-to-fill. Long-term it's 26.4.SpiketheBike said:
So, your town-driving does seem a bit uneconomic.
SpiketheBike
Member
It's actually spot on according to BMW, 26mpg at an average of 19mph.
eff1guy said:Busterboo said:
But how about what it actually works out too by calculation, never mind what the DIS say'soke:
Your question assumes that the odometer is accurate, which it probably isn't. Well, not any more than other measuring devices in the car.
Preferring one to another is a waste of time, really.
Busterboo said:eff1guy said:Busterboo said:
But how about what it actually works out too by calculation, never mind what the DIS say's
Your question assumes that the odometer is accurate, which it probably isn't. Well, not any more than other measuring devices in the car.
My question assumes that the DIS is accurate and very often they aren't. What I'm getting at, is do you do a manual calculation to see what you get to the gallon or do you rely on the DIS calculation? A manual calculation is the only true way to see what you're actually getting. i.e. measure the mileage you've done from a full tank to the point that you've re-filled it and then calculate your MPG from that.
eff1guy, your assumption that 'accuracy' is available only by reading your odometer and then dividing the number of miles since your last fill by the number of gallons you put in your tank - to give a 'true', comparable mpg - is naïve, because, among other factors:
- The 'accuracy' of your odometer will depend, not least, on your wheel size.
- Your 35iS mileage will read differently from mine, because we have different size wheels.
- Fuel delivery at petrol stations is not 'accurate'. A random AA survey found over-delivery - yes, over - of 4% above pump display.
- The 'accuracy' of your odometer will depend, not least, on your wheel size.
- Your 35iS mileage will read differently from mine, because we have different size wheels.
- Fuel delivery at petrol stations is not 'accurate'. A random AA survey found over-delivery - yes, over - of 4% above pump display.
:rofl:mr wilks said:Don't forget tyre pressures Busterthey too can affect mpg
