Yenra original reusable resource — September 6, 2026

Truck aerodynamics: fictional calculation and fleet trial record
FICTIONAL INPUTS, not current prices or tested product performance:
100,000 miles/year; baseline 6.25 MPG; fuel $4.00/US gallon;
installed cost $3,000; extra maintenance $200/year.
Baseline gallons = 100,000 / 6.25 = 16,000.
At 4% fewer gallons: saved 640; gross $2,560/year; net $2,360/year.
Simple payback = 3,000 / 2,360 = 1.27118644 years (about 1.27).
At 2% fewer gallons: saved 320; gross $1,280/year; net $1,080/year.
Simple payback = 3,000 / 1,080 = 2.77777778 years (about 2.78).
At zero saving: net annual cost $200; no fuel-saving payback.
Separate metric: 5% fewer gallons at same mileage gives
1 / 0.95 - 1 = 0.05263158, approximately 5.26% higher MPG.
Excludes financing, tax, downtime, resale and changing prices/mileage.

YOUR TRIAL RECORD
Tractor ID/model/configuration:
Trailer ID/model/height/configuration:
Device exact model, installation and verification source:
Baseline and comparison method:
Route, driver, load, distance and speed policy:
Fuel measurement method, gallons and idle time:
Weather, traffic and unusual events:
Device condition, damage, deployment and repairs:
Number of comparable runs and range of results:
Aggregate economy = total miles / total gallons:
Estimated savings range and limitations:
Installed cost and incremental recurring maintenance:
Other operational costs or benefits:
Review date and responsible person: