Volvo engines with our innovative Eco-Torque feature deliver
torque ratings that maximize their fuel efficiency.
With Eco-Torque, the truck accelerates normally through
all bottom gears. In the top two gears, where most fuel is
consumed, the engine defaults to a lower torque curve. Higher
torque is available on demand, but only under certain conditions.
More power for the hills. More efficiency for your bottom line.
Each Volvo Eco-Torque engine rating has a higher torque curve
and a lower torque curve. The nominal horsepower for each
rating is associated with the higher torque curve. On a steep
grade, performance is enhanced when the engine automatically
switches to the higher curve. Engine efficiency under these
full-load, low-rpm conditions is at its maximum. The engine will
revert to the low curve when the power demand is removed
and cruise conditions are resumed.
This saves fuel by encouraging operation at a lower, more
efficient rpm, and provides a fleet engine that’s capable of
cresting most hills in the top gear. Plus, the driver quickly learns
that this exceptional Eco-Torque performance is obtained by
operating at low engine rpm.
Ratings that save your fleet money now,
and pay you back at trade-in.
All Volvo engines may be up-rated to the highest rating within
their displacement with only a software flash, limited only by
transmission capacity. For example, a fuel-efficiency-conscious
fleet owner may specify the tractor with a 405 Eco-Torque
engine and Volvo I-Shift transmission. At trade-in, the engine
may simply be re-flashed to a full 500 horsepower and 1750
lb-ft torque, for higher residual value. There’s no need to
replace any driveline or cooling components, and no engine
hardware, such as turbo or injectors, needs to be changed.
What kind of fuel efficiency does Eco-Torque deliver? A lot
depends on driver, payload, terrain and other factors. But with
Eco-Torque, you can expect the best possible fuel efficiency
from your fully loaded EPA ’10 Volvo truck.
Volvo power with Eco-Torque
Volvo D11, D13 and D16 engines with Eco-Torque feature low rpm and top gear operation to save fuel.
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Torque (Lb-ft)
Power (Hp)
Engine Speed (Rpm)
Volvo D13-500 Eco-Torque 1750 / 1550
(42 pages)
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