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406oc.co.uk • View topic - Trip computer accuracy

Trip computer accuracy

Polls go here.

Moderator: Moderators

Compared to brin-to-brim calculation, the average efficiency reading on my 406's trip computer is:

Accurate to within 5mpg
5
36%
Consistently under-estimates by up to 10mpg
3
21%
Consistently under-estimates by up to 15mpg
1
7%
Consistently under-estimates by more than to 15mpg
0
No votes
Consistently over-estimates by up to 10mpg
0
No votes
Consistently over-estimates by up to 15mpg
1
7%
Consistently over-estimates by more than to 15mpg
0
No votes
Is inaccurate but not with no consistency
0
No votes
I don't have a trip computer in my 406 that measures efficiency
3
21%
I don't have a 406
1
7%
 
Total votes : 14

Trip computer accuracy

Postby rwb » Fri Apr 15, 2011 6:36 pm

How accurate is the efficiency reading on your 406's trip computer compared to what you work out by brim-to-brim filling?

Does it always under-estimate the truth? Or does it always over-estimate the truth? Or does it just do whatever takes its fancy?
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rwb
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Re: Trip computer accuracy

Postby steve_earwig » Fri Apr 15, 2011 6:45 pm

None of the above :arrowu: I worked it out for quite a few tank fulls but it was always more-or-less right - sometimes over, sometimes under, but nothing worth worrying about.
Talking bollocks sin©e 2007

2004 D9 2.0 HDi 110 Estate lhd VF38ERHZF81657352 - now slod :( :( :(
1991 Yamaha TDM850
2008 Toyota Recall4 2.0 VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVTI ATM LHD JTMBH31V90D007261 - flimsy piece of crap.
1953 Matchless G3LS - Seriously!
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Re: Trip computer accuracy

Postby rwb » Fri Apr 15, 2011 6:56 pm

So that's "Accurate to within 5mpg" ?
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Re: Trip computer accuracy

Postby steve_earwig » Fri Apr 15, 2011 7:15 pm

Ooops, I didn't see that before :oops: More accurate to with a few tenths of a litre but I guess so.
Talking bollocks sin©e 2007

2004 D9 2.0 HDi 110 Estate lhd VF38ERHZF81657352 - now slod :( :( :(
1991 Yamaha TDM850
2008 Toyota Recall4 2.0 VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVTI ATM LHD JTMBH31V90D007261 - flimsy piece of crap.
1953 Matchless G3LS - Seriously!
User avatar
steve_earwig
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Posts: 18618
Joined: Thu Oct 04, 2007 6:09 pm
Location: Jastrebarsko, Croatia http://www.jastrebarsko.hr/lokacija/

Re: Trip computer accuracy

Postby rwb » Fri Apr 15, 2011 7:19 pm

Wow!
I'm regularly 12mpg out.
Trust me to get the freak!
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rwb
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