anything about this JC Whitney item?
# For all cars, trucks, vans and RVs
# Miles-per-gallon scale shows actual gas mileage as you drive
# Easy to install on or under dash
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anyone know anything about this JC Whitney item?
# For all cars, trucks, vans and RVs # <b>Miles-per-gallon scale shows actual gas mileage as you drive</b> # Easy to install on or under dash catalog link: https://tinyurl.com/o2tur https://www.jcwhitney.com/wcsstore/jc...8961G_SW_1.gif |
My understanding is that it
My understanding is that it is just a vacuum gauge with MPG numbers on it. I remember wanting to purchase one of those a while ago but changed my mind when someone told me that these things don't work too well on non-carbureted engines.
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if it's a vacuum gauge,
if it's a vacuum gauge, carburetion vs FI shouldn't affect it. it's all about manifold vacuum, regardless of how the fuel is delivered. (wouldnt work on diesels though)
for it to show mpg numbers, you must be able to calibrate it somehow. too bad the picture's not clearer. i'd like to see what's written on the gauge face. |
Re: if it's a vacuum gauge,
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Re: if it's a vacuum gauge,
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damn i was about to buy it too, 28 bucks to show my fuel economy!?! but ya i need vehicle speed inputs too! and mpg average. |
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