Compression Ignition Addict
Join Date: Feb 2009
Location: Nacogdoches, TX
Thanked 27 Times in 25 Posts
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The 7.3 cooling system is just very efficient.
I was out yesterday and I got it up to 194-195*F with A/C on, doing around 1900-2000 RPMs, at about 63*F ambient temp. A lot of the time it'll sit around 180*F with cooler temps where no A/C is needed.
It's been hard for me to hit much over 200*F, and that was with a travel trailer, doing about 2200RPM at around 40*F.
2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
330,000 + miles