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**jocko** · 04-06-2014, 12:50 AM

Concur that 195 is preferred - but if you're running 210 once warmed up all the time - and it never goes above that, I'd suspect the gauge is just a little off. Even if it isn't a gauge issue, 210 is ok. Higher isn't. I've had trucks run close to that, and some that run just below 200.

04-06-2014, 12:50 AM	#8
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,967	Re: Optimal Coolant Temps Question...... Concur that 195 is preferred - but if you're running 210 once warmed up all the time - and it never goes above that, I'd suspect the gauge is just a little off. Even if it isn't a gauge issue, 210 is ok. Higher isn't. I've had trucks run close to that, and some that run just below 200.