Ford Scorpio Forum - Print Page


    
      
        Ford Scorpio Forum
        (https://www.fordscorpio.co.uk/cgi-bin/yabb/YaBB.pl)
      

        General >> Off Topic Subjects >> M.P.G.  ?
        
(Message started by: indefatigable on Nov 17^th, 2010, 11:05pm)

Title: M.P.G. ?
Post by indefatigable on Nov 17^th, 2010, 11:05pm

Hello All
Just a quicky.
As the speedo on my Scorp reads 10% fast,i found this out whilst useing a Sat Nav,and then confirmed here on the forum some where.
Does this also mean that the trip computer is telling me that i am getting more miles to the gallon than i realy am :(
i.e. 10% less to the gallon ???

Unless the trip computer is calabrated to compensate for the 10% factor built into the speedo?

If not ,that 30 m.p.g. would be 27m.p.g. ??? :-[ :'(

Richard

Title: Re: M.P.G. ?
Post by tlundkvi on Nov 18^th, 2010, 7:23am

No, the Scorpio speed measurement is very accurate - it's just what is explicitly told to the driver that is exaggerated.

You can with your satnav do the following test:

Press trip reset until you hear a beep

Then press shortly (observing the trip display) until you get a "SPEED"/0 on the display.

Compare while driving the reading to your satnav. I did the test at various speeds, and the error margin was at most 1km/h.

It's messing with VSS pinions that messes things up. Internally everything is accurate.