Penny - pincher alert: It has cost WAW about $ 700 in fuel to drive almost 30,000 miles (48,280 km); assuming $ 1.10 per
gallon for diesel fuel, Volkswagen's Passat TDI travels a mile for just half a nickel's worth of fuel.
Due mostly to supply and demand, diesel fuel costs more than gasoline: As of this writing, AAA's national average
cost for diesel fuel was $ 2.21 per gallon, versus $ 2.13 for premium unleaded.
Locking lugs in the filler flap will only unlatch a flap in the filler neck if the pump nozzle is the correct
diameter for diesel fuel.
With the GM 2.8 L diesel gaining only 2 MPG over the 2.5 L gasoline engine, while adding 440 pounds to its curb weight, the diesel fuel economy gains are not sufficient to offset the higher emission
factor for diesel fuel, with the diesel option producing 4 % more CO2 - equivalent emissions over the truck's life - cycle.
The Blutec performs nicely — it's quiet, and pulls with a nice, smooth surge away from lights and on highway ramps — but the performance isn't inspiring and the mileage isn't really good enough to offset the premium one
pays for diesel fuel.
When combined with methanol, a
substitute for diesel fuel is produced that burns 70 percent cleaner than diesel fuel made from petroleum.