• neil733 avatar neil733 Posted: 11/30/2012 1:43am PST

    With current figures, especially in the US, gallons per 100 miles makes sense.
    However as fuel consumption approves, the numbers get smaller. You have already mentioned that 50mpg is 2.0gal/100 miles. With plug-in vehicles already exceeding 100mpge, this means they are already below 1.0gal/100 miles equivalent, so we're starting to talk about differences between vehicles of less than 0.1. This reduces the incentive for customers to purchase a more efficient vehicle, as the visual difference is so small, and also reduces the incentive for manufacturers to make small improvements.

  • tache avatar tache Posted: 12/2/2012 11:41am PST

    But the manufacturers will expect you to pay thousands for a 0.1 improvement just because the improvement looks really good in deceiving mpg units ...

  • davidgodbout avatar davidgodbout Posted: 11/29/2012 6:25am PST

    Either way MPG or gallons per hundred miles the passenger miles per gallon are a more important factor.
    In other words, my crew cab truck averages 20 mpg and I often have 4 to 6 passengers vs a mini -car that gets 35 mpg and only hauls 2 people.
    Truck ex:5 people riding 20 miles = 100 passenger miles /gallon
    Mini Ex: 2 people riding 35 miles = 70 passenger miles/gallon

    This does not even factor safety in. Which would you rather be riding in if you were involved in a 40 to 50 mph head on crash?............The good news is that a new generation of 8 and 9 speed transmissions will push full size vehicle economy into the 25 to 30 mpg range (without even factoring in passenger miles per gallon).

  • tache avatar tache Posted: 12/2/2012 11:31am PST

    And what makes you think that your truck is safer than a passenger car? The crush tests? ... but you forget that a small car can corner tighter and stop better than your truck, therefore it could avoid the accident all together? (this just in case is not rear ended by another heavy crew cab truck)
    20mpg = 11.76 l/100km = 1.96 l/100km/pass with 6 pass
    35mpg = 3.72 l/100km = 1.86 l/100km/pass with 2 pass
    So your fuel efficient truck needs more gas than 3 passenger cars ... mpg can be really deceiving

  • tache avatar tache Posted: 12/2/2012 11:36am PST

    20mpg = 11.76 l/100km = 1.96 l/100km/pass with 6 pass
    35mpg = 6.72 l/100km = 1.68 l/100km/pass with 4 pass
    and those 4 passengers in the car will travel far more comfortably than the 6 passengers in the truck