180* t-stat mpg v/s 195* t-stat
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Joined: Mar 2007
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180* t-stat mpg v/s 195* t-stat
Well since my last post I have run a 195* t-stat for 4 tanks or so of gas I have a 99 5.9 2wd 8" bed 4dr. I have run the next range cooler autolite spark plugs and gotten rid of the fan clutch in favor of electric fans.
I went from stock air intake to CIA after getting a consistant 17.2 mpg with the cia and 16.8 from the stock I went back to the cia and changed out my 180* t-stat to the 195* t-stat.
With the 180* t-stst I run 60MPH back and forth to work daily very little other driving. I was getting 17.2 mpg and my motor was running at 145* at the return on the radiator by the dash gauge it looked to be about 180* or so.
I switched to the 195* t-stat same routine driving I droped to 15.8 mpg motor temp was 180* by the radiatoe return and right at 210* on the dash gauge.
Clearly the warmer t-stat has effected mpg by 1.4 mpg or so. I will leave the 195* t-stat inplace and give it a tune up with the regular autolite plugh and see what that produces. Then swithc back to the cooler range plugs.
I went from stock air intake to CIA after getting a consistant 17.2 mpg with the cia and 16.8 from the stock I went back to the cia and changed out my 180* t-stat to the 195* t-stat.
With the 180* t-stst I run 60MPH back and forth to work daily very little other driving. I was getting 17.2 mpg and my motor was running at 145* at the return on the radiator by the dash gauge it looked to be about 180* or so.
I switched to the 195* t-stat same routine driving I droped to 15.8 mpg motor temp was 180* by the radiatoe return and right at 210* on the dash gauge.
Clearly the warmer t-stat has effected mpg by 1.4 mpg or so. I will leave the 195* t-stat inplace and give it a tune up with the regular autolite plugh and see what that produces. Then swithc back to the cooler range plugs.