© Ford 
© FordChassis cab with straight frame and Regular Cab is the basic format in which the Super Duty is offeredFord's F family (no, we don't mean the F word) of utility vehicles is quite large and it's been a while since its members first received LPG/CNG conversion options. The F-650/F-750 Super Duty models are the latest ones, but we wouldn't exactly call them offspring – they're more like older brothers who have just come back home having received Navy Seals training. The vehicles, by nature made as chassis cabs to be completed to order by specialist coachbuilders, are available with different cab configurations (Regular Cab, Super Cab and Crew Cab) and a few frame options: regular (straight), dock height (higher) and, for the first time in the model's history, as a truck tractor.
Alternative fuel systems are the right things in the right place with these cars. Why? Well, a 6,8-litre V10 is as much typically American as it a blasphemy against fuel economy. And since there's abundance of LPG and CNG in the US now that shale gas is excavated on a large scale, not only are gaseous fuels bound to become the most affordable, but also the most accessible option. And soon enough the 6,7-litre V8 PowerStroke diesel engine, which is also an option on the new Super Duty, may become redundant.
© FordThe tractor, however, is new to the line-upWhat won't become redundant is the standard feature called the Intelligent Oil Change Monitor, designed to control the condition of motor oil based on the car's actual mode of operation and warn the driver when it's time it was changed. We expect the LPG/CNG examples of the Super Duty will use the feature to a lesser extent, since gaseous fuels don't cause dilution and washing away of oil from cylinder walls, thus limiting the build-up of solid-state combustion products and prolonging the longevity of engine oil. So all in all, not only do LPG and CNG cut the refueling costs, but they also reduce maintenance expenses. Now these are the fuels, aren't they?
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