Thanks for confirming what I thought, Frank. And, thanks for the new magazine! Steve ----- Original Message ----- From: <farna@xxxxxxx> To: "AMC-List" <mail@xxxxxxxxxxxx> Sent: Sunday, November 06, 2005 6:40 AM Subject: Thermostat-gas mileage realtion > Correct in both counts Steve! To low a thermostat can cause low mpg, and it was > 195 from the factory. The engine should run around 190-220 degress. It' not > "running hot" until it tops 240 or so. Modern engines, even the 4.0L, run closer > to 220 in the summer and 230 is even normal on hot days in warmer climates. Not > much room between normal and running hot, which is more like 250 for newer, 16 > psi systems! Yours more likely has a 13 psi radiator cap. > > -- > Frank Swygert > Publisher, "American Independent > Magazine" (AIM) > For all AMC enthusiasts > http://farna.home.att.net/AIM.html > (free download available!) > > > > >