
Originally Posted by
tracer
In order of importance and cost savings, the tips are:
1. Slow down the vehicle and utilize Vehicle Speed Limiting. Weber explains, "Speed is the largest factor in fuel efficiency because aerodynamics drag forces go up exponentially with vehicle speed." Vehicle Speed Limiting [on International trucks] is a programmable option that limits how fast the truck can travel. The limit can be set at the factory or at the dealer facility. Weber says many small fleets don't use Vehicle Speed Limiting and their fuel costs rise as a result. There may also be insurance cost savings, and certainly there are safety benefits from this option because these trucks are traveling slower." Slowing down from 70 to 60 mph and utilizing Vehicle Speed Limiting can yield fuel savings of up to 10% or $5,000 annually.
2. Specify the most fuel-efficient engine. The customer's engine OEM choice is a matter of personal preference. Dealers should contact their International application engineer in Fort Wayne and work with the various engine manufactures to understand engine-specific fuel consumption. In company testing, International has found up to a 7% range between various engines. This translates to $3,500 in fuel costs annually. [I talked to Michael Kirby, a sales manager at Altruck International in Kitchener, ON (Canada) and he said according to his experience Cummins and Cat C13 engines would be best for fuel efficiency.]
3. Gear vehicles to ensure engine speed is set according to manufacturer's specification at cruise speed. To maximize fuel efficiency, dealers need to specify vehicle gearing (transmission final drive ratio, axle ratio and tire size) to run engine RPMs according to the manufacturers specifications. By understanding the customer's desired cruise speed, the dealer can use the TCAPE computer application [a software program all International dealers are equiped with] to set the truck's transmission final drive ratio and axle gearing ratios correctly. Weber says, "TCAPE should run for every truck order but we know that's not happening in every instance. If we could make this a uniform practice throughout our dealer network, we could improve our brand image, raise levels of customer satisfaction and product reliability by a large margin. As a network, we could garner consider competitive advantage over other OEMs by making the use of TCAPE before order placement is a must." Powertrain optimization can yield fuel savings of up to 10% or $5,000 annually.
4. Specify International's roof deflector. Trucks with tall trailers that operate at vehicle speeds of 45 mph and above will benefit from the addition of an International factory-installed roof deflector. Weber says, "At a cost of about $700-$1,000, it will provide an estimated annual 10% in fuel savings. This translates into less than a 3 month payback." International's roof deflector can yield fuel savings of up to $5,000 annually. The use of a non-International roof deflector will save approximately 5%-7% annually. Weber believes many trucks on the road would benefit from a roof deflector and he says, "Customers who need a roof deflector but operate without one, are literally throwing thousands of dollars away."
5. Specify fuel economy tires with low rolling resistance. Tires with low rolling resistance use less fuel to move the truck. Specifying these tires and keeping the correct tire pressure can yield fuel savings of up to 10% or $5,000 annually.
6. Reduce engine idling. An average vehicle consumes up to 1,800 gallons of fuel while idling in a year. By specifying idle reduction solutions, including: engine programmable shutdown, fuel-fired heaters, and electric air-conditioning, operators can save the majority of this expense or about $4,500 annually.
7. Specify an automated transmission. This feature reduces operator labour by automating shift of the gears. It can save up to 5% or up to $2,500 in fual savings annually.
8. Specify a low engine-governed speed (1800 rpm in lieu of 2100 rpm). This lower engine-governed speed allows the engine to operate more efficiently. It saves up to 5% or up to $2,500 in fuel savings annually.
9. Specify cab side extenders. For hauling sided trailers traveling at speeds of 45 mph and above, the addition of cab extenders will provide an estimated annual 3% in fuel savings. Cab side extenders can yield fuel savings of up to $1,500 annually.
10. Monitor tire pressure on a weekly basis. It's estimated that 25% of trucks on the road have low tire pressure. Many smaller fleets skip this important monitoring step and it costs them 3% in additional fuel costs or $1,500 a truck annually. [a tip for owner-operators: check tire pressure on both the tractor and company trailer before the trip, even though you only own the tractor.]
11. Specify chassis skirts. For vehicles traveling at speeds of 45 mph and above, and at a cost of just $1,500, chassis skirts will provide about 3% in fuel savings or up to $1,500 annually.
12. Specify a direct drive transmission, final drive ratio = 1.0 Specify the direct drive transmission and save 2% or up to $1,000 in fuel savings annually.
13. Specify aerodynamic mirrors. For vehicles traveling at speeds of 45 mph and above, aerodynamic mirrors will provide about 1%-2% or up to $1,000 in fuel savings annually.
14. Specify a bumper dam. For vehicles traveling at speeds of 65 mph and above, and a cost of about $150, a bumper dam will provide 1.5% or up to $750 in fuel savings annually.
15. Consult with an application engineer. Expert advice is available. Dealer staff should contact the appropriate application engineer n Fort Wayne for additional details on specifying components designed for better fuel economy.
According to Weber, "Getting a truck's specification right is the result of communication and a solid partnership between two parties - the truck owner who knows the vehicle application (speed, road profile) and the dealer who specs the axle ratio, transmission and tire size appropriately..."