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Old 03-28-2013, 03:10 PM   #11 (permalink)
tru
EcoModding Apprentice
 
Join Date: Aug 2011
Location: FL
Posts: 126

tru - '05 Ford Focus ZX3
90 day: 39.46 mpg (US)

the truck - '02 GMC Sierra Denali
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Quote:
Originally Posted by Miller88 View Post
I think it's more an effect of warmer everything ... not warmer fuel.

My Focus never seems to fully warm up on cooler days. Thermostat was tested good, but it still just doesn't like to heat up.

Do you have any grille blocking?
What temp does you focus run? and model year?

in florida winter i can barely break 170 with a strong grill block

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