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Discussion Starter #1
How many of you guys are running 203 Tstats on stock to fairely stock trucks? What kind of MPG gains did you get?
 

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Discussion Starter #3
They don't make a 203 for the 6.0 do they? I've only found them for the 7.3's.
 

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My engine oil temp on my 05 6.0 runs right around 200-203 on the highway anyway with the stock Tstat so I don't see any reason to change the Tstat out.
 
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