Winter Fuel Recovery Adjustments
During the colder months, fuel consumption naturally rises as fuel efficiency drops. Many factors contribute to this “Winter Effect” in fuel economy. For instance, fuel is blended differently for colder weather, which results in a 3% reduction in miles per gallon (MPG) efficiency. Colder air increases aerodynamic drag because of increased ambient air density. This results in a 1% MPG reduction for every 10° F drop in temperature. Consequently, around 0° F, (just above -20° C), there is a 10% MPG reduction. In addition, more severe weather, including snow, rain and heavier winds also strongly impact fuel consumption. Generally, Winter Effect contributes to an 8% – 15% reduction in MPG efficiency.
Not every route will experience the same severity of winter conditions, which translates to different impacts on fuel economy. This is why our Winter Fuel Recovery Adjustments are a tiered system. The Winter Fuel Recovery Adjustments will be effective November 1st to March 31st, and each route combination has been assigned a specific winter fuel adjustment rate.
The Three Winter Fuel Recovery Tiers are as follows:
Canadian Currency (CAD)
W1: 9 cents per mile
W2: 8 cents per mile
W3: 7 cents per mile
U.S. Currency (USD)
W1: 8 cents per mile
W2: 7 cents per mile
W3: 6 cents per mile
A heavy load is a specialized service that is available on some of Challenger’s routes. It can carry more weight than a tandem load (Tri-axle or Quad services, where applicable). Due to the extra weight, heavy loads are not as fuel efficient as tandem loads. A heavy load fuel rate is calculated with the same weighted average fuel costs as the standard route, but typically performs at 1 mile per gallon less.