I know y’all talking truck but my 15 SRT 392 just got 28 mpg on a trip to Hilton head (75 mph) down and back. Lie guage was same as fuel-miles added up. The 4 cylinder drop out really makes a difference.
The best my 2020 T/A 392 has gotten was 22mpg, with the wife driving, that was in eco mode.
1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5
