- Filling up your tank in the morning when it's cooler makes no difference in cost savings because the 35,000-gallon underground tanks do not dramatically change temperature in daily cycles.
- Larger fuel retailers turn over supply very rapidly, greatly reducing the fuel's time spent in the underground, insulated tanks.
- Fuel experiences significant expansion and contraction with temperature changes:
Gas = 1 percent per 15 degrees F change.
Diesel = .6 percent per 15 degrees F change.
Diesel = .6 percent per 15 degrees F change.
- Canada and Hawaii have used automatic temperature adjustment devices at retail fuel pumps for a number of years.