Just fixed her up this weekend with some MOBIL1 5W20 full SYN. Also put in a new 180 NAPA thermostat,the car runs very cool now.Oil temp. dropped from 212 to 190 is the what I was seeing .Even when it got up to 204 she cooled right back off to 190 after a few miles(PRESSURE was @23psi at idle and 50 to 60 on the road).The water temp looked great it droppped 1/8 of a mark on the temp. gage,not sure what that equals out to but it ran good . Just a little FYI

 

I like amsoil tried mobil 1 and Amsoil felt like it runs better in all my engines.

 

What kind of Thermo does the Charger car come w/ Stock?

 

My stockerhad203stamped on it, I assume that was 203 degrees.