MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: 80walk on May 14, 2018, 02:47:02 am

Title: Trip computer...
Post by: 80walk on May 14, 2018, 02:47:02 am
How accurate is the trip computers average mpg ... ? just completed a mostly motorway journey of 985 miles at 38.5mpg avg ....  :thinking:
Title: Re: Trip computer...
Post by: colesey on May 14, 2018, 05:47:46 am
If you brimmed your tank before and after, then it should be easy to compare. I would imagine it is 90-95% correct given that the journey was so long with fewer variables such as stop start / running cold etc. These cars are actually quite economical on a long run if you don’t use too much boost.
Title: Re: Trip computer...
Post by: stealthwolf on May 14, 2018, 02:58:52 pm
I use a spreadsheet and record my figures. Yes it's sad but I've found the onboard trip computer to be reasonably accurate.

I've managed 40mpg but that was pretty much 60mph along the whole journey. No overtaking.
70mph gets me around 30-35mg (with overtaking).
Title: Re: Trip computer...
Post by: Sway_ed30 on May 14, 2018, 03:22:11 pm
I use a spreadsheet and record my figures. Yes it's sad but I've found the onboard trip computer to be reasonably accurate.

I've managed 40mpg but that was pretty much 60mph along the whole journey. No overtaking.
70mph gets me around 30-35mg (with overtaking).
I would say this is pretty accurate.

Doing 70-90 I averaged 31.4MPG on a 250+ round trip and my tyre pressures up front were a little low.

40MPG or close to @60MPH or so definitely sounds pretty accurate.

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Title: Re: Trip computer...
Post by: Notch000 on May 15, 2018, 03:30:07 pm
i clocked mine for a full tank and found it to be +/-2 mpg accurate which is good enough for me
Title: Re: Trip computer...
Post by: attweev on November 11, 2021, 02:39:31 pm
If you are driving like a regular person, it is pretty accurate