Two things, 1 is make SURE 10)% the oil is level. The pans on the Vipers suck being so flat that any slight incline or decline will throw the oil level of 1-2 quarts. I was a victim o this issue myself back in the day and was like WTF. Secondly, I did not see 320 miles so that is not a lot and give it a hair more time before you go nuts troubleshooting but if you are only able to drive it at night well that is really bad my friend and time will only mask the issue.
2007 SRT10. TT, 1117 RWHP on pump. 8.92 @ 151 MPH
2005 Viper, Vert, DLM SE #27/50, 10 Rib Paxton, full build, upgraded innercooler, 950 RWHP on pump in 99 degree heat!
2000 Viper GTS, 10 LB Roe+GG heads/intake+Solid Roller, WM, T&D's, Tom's 40mm
First illegals, then a beheading, now Ebola. Why doesnt obumbo just save time and fly a plane load of ISIS here to begin the slaughter.