2004 Ford F150 Bi-fuel Supplement 2nd Printing - Page 18
2004 Ford F150 Manual
Page 18 highlights
Driving To avoid damage to the unleaded gasoline fuel injection system of your Bi-fuel vehicle, operate your vehicle at least every 60 days using unleaded gasoline. Use a minimum of one full tank of unleaded fuel every 60 days. The characteristics of LPG are unique from those of CNG, unleaded gasoline and diesel fuel. If your Bi-fuel vehicle operates on LPG, the gaseous fuel injection system may automatically change to the unleaded gasoline operating mode under certain conditions in very cold temperatures. If you expect to operate your LPG Bi-fuel vehicle in very cold temperatures, be sure to maintain an adequate supply of unleaded gasoline in the fuel tank. TRAILER TOWING WITH YOUR BI-FUEL VEHICLE Refer to Towing a trailer in the Driving chapter of the Owner's Guide for trailer towing procedures. 18