N52 3L mpg
- Thread starter Theog
- Start date
Theog said:
I like driving in Germany - do remember that it's not a free for all race track and that oniy some sections of Autobahn are derestricted - even if you think you are travelling quickly, there is nearly always somebody much faster. Ie last year at 120ish I pulled into the near side to allow a Porsche 4wd waft by at 140 +
I have found that a steady 100/110mph is a nice speed for a long journey in Germany. It's a good balance of ground covered in a more relaxed manner while still feeling the car is being driven as intended!
Maybe I'm just getting old?
ronk said:
hmm interesting. I suppose it depends on the car too. 100mph in my wifes car would feel like lightspeed. My dad bought one of those maserati ghibili's last week. It feels fast, but at the same time it's so calm that you could probably do any speed and feel relaxed given the power and braking speed.
I remember speaking to a German guy about cars. He said he finds it hilarious that so many people buy all these fast cars and yet cant drive them fast at all. He said that a lot of German cars were designed to go very very fast whilst still being able to call someone within your car. Essentially aimed at excs travelling across the quite geographically large country whilst still needing to do business etc.... when you think of it like that, it makes you realise why they have produced what they have e.g. controlled, not too crazy but powerful cars that woft you along with not too much drama. I think M / AMG etc are an exception due to the sporting nature. But I think that helps sum up quite a lot about German cars... also explains why they are so reliable as the 'standard' is very fast driving with high mileage, so i suppose if it can withstand that, then anything else is probably pretty easy to achieve.... just food for thought anyway!
skelters said:
I suppose that's better than worse.
I have no idea how the mpg on-board calculator works, but the start up time must mess with it whilst engine is adjusting. Also i have no idea how aircon and general electrical use effects it? Is it simply based on fuel going from tank to engine and amusing its all burnt?
Perhaps age effects each sensor too?
I think you have to reset it every time you do a journey to get a more realistic average. If you do a number of short journeys from cold in town it will bring your average right down and then doing a longer journey you will start from a very low average.skelters said:
Zeld4 said:
If you are trying to derermine an average fuel consumption for the car then leave it alone, take the figure over the longest period and type of journeys undertaken - surely that's what an average is ? Otherwise it's only an average / fill up.
My average 32.4mpg has been over the last 2000 (ish) miles and has been derived from all sorts of trips .
In the hand book it states "The average fuel consumption is calculated for the period since the engine was last started".ronk said:
If you reset the trip computer and did a long slow run for say 100 miles then ragged it for 5 miles you would get a different average then of you did the same 100 miles, stopped the car, turned it back on and ragged it for 5 miles. The average on the trip computer would come right down. So resetting every time you start then working out the average based on that is more accurate.
My avg mpg display stays resident in the display and I treat it as an average of fuel used?
I don't see how the average of 100m @ 40 mpg + 5m @ 20 mpg can be altered.
On a 1500 mile holiday I kept a spread sheet on the iPad of miles done and fuel used and the average display was quite accurate - I did all sorts of journeys.
It was so good I just stopped recording the data!
I don't see how the average of 100m @ 40 mpg + 5m @ 20 mpg can be altered.
On a 1500 mile holiday I kept a spread sheet on the iPad of miles done and fuel used and the average display was quite accurate - I did all sorts of journeys.
It was so good I just stopped recording the data!
It won't - The system can only count when its alive.
What skelters is saying is - Multiple journeys from cold uses much more fuel in the warming up period.
We live at the bottom of a hill and the instant MPG reading when cold is 14mpg. Do that often on shorter trips and it has big an impact on the overall reading.
Its also the reason why manufactures quote 'X' mpg at constant speed - They start with a hot engine an a simulated flat road!
From memory here, Im sure my E85 had two trip mpg counters - one was overall and the other per trip ?
What skelters is saying is - Multiple journeys from cold uses much more fuel in the warming up period.
We live at the bottom of a hill and the instant MPG reading when cold is 14mpg. Do that often on shorter trips and it has big an impact on the overall reading.
Its also the reason why manufactures quote 'X' mpg at constant speed - They start with a hot engine an a simulated flat road!
From memory here, Im sure my E85 had two trip mpg counters - one was overall and the other per trip ?
