Related: Direct/Overdrive Adds Efficiency to Bulk-Hauling Volvos
VIDEO: Idaho Milk Hauler Saves Fuel with Adaptive Gearing
Volvo Trucks has put a new spin on an old powertrain management strategy. By locking out top gear on its I-Shift overdrive transmission, drivers can pull loads efficiently in 11th gear (direct drive) and still get the performance they want.

Photo: Jim Park

Photo: Jim Park
Volvo Trucks has put a new spin on an old powertrain management strategy. By locking out top gear on its I-Shift overdrive transmission, drivers can pull loads efficiently in 11th gear (direct drive) and still get the performance they want.
When running empty, sensors in the transmission and the suspension sense the lower weight and unlock 12th gear, which is overdrive. The truck can cruise home at a very low engine speed and a higher road speed.
Check out this "Focus On" video report, which explains how Adaptive Gearing works and features excerpts from an interview with Gene Brice, co-owner of Idaho Milk Transport.
More Fuel Smarts

Trucking’s Diesel Squeeze Isn’t Letting Up
With diesel topping $6 a gallon nationally, ATA's Bob Costello explains why fleets should prepare for continued pressure at the pump.
Read More →
FlowBelow Redesigns Trailer AeroSlider to Cut Fuel Use
The lighter trailer aerodynamic system installs in less than 45 minutes, according to the company, with potential payback in under a year depending on fuel prices and trailer mileage.
Read More →
Why Diesel Price Relief Efforts May Fall Short
Diesel prices have eased from September’s record high, but doubts about additional Russian supply and limits on dyed-diesel tax relief mean trucking fleets still face expensive fuel. And prices could go higher.
Read More →Why Small Fuel Savings Matter in Trucking
Can better fuel economy help pay for driver raises? In this podcast, GP Transco explains how small efficiency gains create room to reinvest in its people.
Read More →How GP Transco Cuts Trucking Fuel Costs, a Tenth of a Gallon at a Time
What’s another tenth of a mile per gallon worth? GP Transco shares how equipment upgrades and driver coaching turn small gains into meaningful fuel savings.
Read More →
Electric Yard Tractors Move Beyond Pilots
Operating-cost savings have overtaken sustainability goals as the leading reason surveyed fleets are adopting battery-electric terminal tractors, according to new NACFE research.
Read More →
Geotab Links Fleet Card to Vehicle Data
The new card combines fuel discounts with telematics-based purchase controls. Geotab’s analysis also points to potential savings from choosing lower-priced fuel stops.
Read More →
Fleet Economics Shape Electric Truck Outlook
ACT Research expects costs, charging infrastructure, and technology improvements to drive zero-emission commercial vehicle adoption as federal regulations and incentives retreat.
Read More →
Wex Adds Cardless Fuel Payments for Over-the-Road Customers
A new fuel card feature for Wex customers offers convenience and security.
Read More →
New California Law Could Shed Light on Electric Truck Prices
Why do battery-electric Class 8 trucks remain so expensive? A California bill signed by Gov. Gavin Newsom would give fleets and state agencies more visibility into what manufacturers charge.
Read More →
