A new propane direct-injection fuel system — developed through a collaboration between Stanadyne, Katech and the Propane Education & Research Council — made its public debut this week at ACT Expo 2025 ...

1. The addition of direct-injection to the 3.5L V6 brings power to 301 hp and 273 lb-ft of torque. 2. Fuel economy also goes up to 20/29 mpg. 3. Cosmetic updates for 2012 include new headlights ...