What do I trust? - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 06-09-2010, 12:43 PM Thread Starter
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What do I trust?

Have an Outlook Monitor which I've included the fact in the trucks profile that it has 35's to make the neccesary changes to display an accurate speed as I'm aware that my speedo will be off slightly (+ or -), not sure. My GPS however, which should be "impartial" is showing my speed about 6 mph less than the Outlook's indicated speed. Any thoughts as I would really like to avoid tickets if possible..Many tks!

2006 F-350 FX4 Lariat 6.0 ltr
Bully Dog Outlook Monitor
35" Dick Cepek FC II
Magnaflow Exhaust
AFE 4" Turbo Bac
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post #2 of 3 Old 06-09-2010, 01:55 PM
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I would tend to trust the GPS but if you want to be sure to avoid ticket use the lower of the 2.
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post #3 of 3 Old 06-09-2010, 03:29 PM
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Yeah I have pretty much same set up as you and I just got a ticket but I was pretty surprised my speedo wasn't off at all I thought it was a bit weird

2010 F350 auto
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