Fuel

Calculate Fuel Savings

Pick one question. Your miles, mpg, and diesel price are used in every answer.

Saved on this device until you clear the browser. Numbers only — not advice.

Your truck

Annual milesCurrent mpgDiesel $/galRegional diesel price

Checking this week's diesel price…

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What you buy

Select modifications:

Trailer side skirts(+0.22 MPG, $1,200)Trailer tail(+0.22 MPG, $1,800)Cab extenders / gap fairing(+0.07 MPG, $900)FlowBelow AeroKit · Let's Truck(+0.16 MPG, $1,705)FlowBelow wheel covers · Let's Truck(+0.07 MPG, $223)Trailer underbody device(+0.15 MPG, $1,800)Aero splash guards(+0.07 MPG, $300)Camera mirrors(+0.07 MPG, $3,000)Low-rolling-resistance tires(+0.22 MPG, $2,800)Wide-base / super singles(+0.2 MPG, $3,500)Tire pressure system(+0.04 MPG, $1,200)Tractor 3-axle alignment(+0.04 MPG, $300)6x2 axles(+0.19 MPG, $1,000)Downspeed (faster axle ratio, lower cruise rpm)(+0.15 MPG, $6,000)10W-30 instead of 15W-40(+0.04 MPG, $0)Max Mileage catalyst · Let's Truck(+0 MPG, $235)

Typical savings and price. Change them if your quote is different.

Mpg you gainNew mpg would be 7.4.Purchase cost

Name

Make modifications

This does not lower your fuel bill with these numbers.

$0

Saved on fuel this year

This year

$0

0 gallons you do not buy

Pays for itself

No purchase price

No purchase price entered

A month

$0

Fuel savings per month

Year-one net

$0

Same as yearly savings (no cost entered)

Make modifications

This does not lower your fuel bill with these numbers.

See it work.

Watch how the free Fuel Calc turns your miles, your mpg and your diesel price into real dollars. Then run your own numbers right here.

Driveline

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planning tools

For planning purposes only — not professional advice. Let's Truck does not provide legal, tax, insurance, financing, or carrier-compliance advice. Scores, estimates, and splits are tools to help you evaluate your options. You're responsible for your own decisions, paperwork, and compliance.

Your numbers stay on this device.