What a Service Van Mile Really Costs in 2026, by Region

It's Monday morning and the fuel card statement landed. Same number of trucks, roughly the same number of calls as last October, and the fuel line is up by a third. You didn't add a tech. You didn't take on a new territory. The gallons cost more.

This page puts numbers on your service van cost per mile, region by region, from the latest government fuel prices: price per gallon now versus a year ago, cost per mile for a gas van and a diesel truck, how that compares with the 2026 IRS rate, and what a drive between jobs costs with the tech's wage added. Then it tackles the question every owner is asking this fall: should you add a fuel surcharge?

Editorial note: we refresh the figures on this page monthly when new weekly prices are published. This version uses EIA retail prices for the week of October 26, 2026.

Fuel prices by region: where 2026 stands

The U.S. Energy Information Administration publishes average retail prices every week for regular gasoline and on-highway diesel, broken out by PADD region plus California on its own. For the week of October 26, 2026, the EIA's Gasoline and Diesel Fuel Update put the national average at $4.269 a gallon for regular and $6.352 for diesel.

The year-over-year jump is the part that hurts. Nationally, regular gasoline is up $1.23 a gallon from a year ago, about 41%. Diesel is up $2.63, about 71%. If your fleet leans on diesel trucks, your fuel line has grown much faster than the gas-van shops down the street.

National figures hide a wide spread. California diesel is $8.155; Gulf Coast regular is $3.702.

Service van cost per mile, by region

To turn price per gallon into cost per mile, you need a fuel economy number. Ours are assumptions, not measurements: 14 mpg for a typical full-size gas cargo van and 15 mpg for a diesel service truck, both loaded with tools and stock and doing stop-and-go service driving. Your vehicles will differ. Swap in your own mpg and the math holds.

All figures below are illustrative, calculated from EIA weekly prices for October 26, 2026 (prices in dollars per gallon; per-mile cost in cents).

A few things stand out:

• Diesel cost per mile for a service truck now runs about 12 to 14 cents more than a gas van in most regions, even with the diesel's better assumed mileage.
• The Rocky Mountain and Midwest regions saw the steepest gas increases, around 50%.
• California is its own market. A diesel truck there burns roughly 54 cents of fuel every mile, about 12 cents above the national diesel figure.

A year ago, the same national averages worked out to roughly 22 cents a mile for the gas van and 25 cents for the diesel truck. That's an extra 9 cents a mile on gas and 18 cents on diesel. On a truck that covers 20,000 service miles a year, it's an illustrative $1,700 to $3,500 more in fuel per vehicle.

How fuel compares with the 2026 IRS mileage rate

The IRS split its 2026 business standard mileage rate in two. According to the IRS standard mileage rates page, it's 72.5 cents per mile from January 1 to June 30, 2026, and 76 cents per mile from July 1, 2026. The Journal of Accountancy reported that the IRS made the mid-year change citing the increase in fuel costs, its first midyear adjustment since 2022.

The rate isn't a fuel number. The IRS says it's based on an annual study of the fixed and variable costs of operating an automobile. That means depreciation, insurance, maintenance, tires and registration are all baked in alongside gas. It's also built around a car, not a loaded service truck.

Here's why that matters. At the national average, fuel alone is now about 30 cents of the 76-cent rate for a gas van, roughly 40% of it. For a diesel truck, fuel is about 42 cents, or 56%. The rest of the rate has less room to cover wear, insurance and the truck payment than it used to. If you set your internal cost per mile at the IRS rate and stop there, you may be underestimating what a heavy service truck costs to run.

For how the rate works for deductions and reimbursement, see our guide to the 2026 IRS mileage rate. This isn't tax advice; talk to your accountant about which method fits your fleet.

The drive between jobs: what one hour of windshield time costs

Fuel is only part of the bill. While the van is moving, you're also paying the tech who's driving it.

The Bureau of Labor Statistics puts the May 2025 median wage at $29.33 an hour for HVAC mechanics and installers, $30.67 for plumbers, pipefitters and steamfitters, and $30.38 for electricians. Those are wages only. Employer taxes, workers' comp and benefits sit on top.

Now take an illustrative drive between jobs: 35 minutes and 15 miles, which is common in suburban service areas.

• Tech wage for 35 minutes: about $17.11 (HVAC), $17.89 (plumbing), $17.72 (electrical)
• Fuel for 15 miles at national averages: about $4.57 in a gas van, $6.35 in a diesel truck
• Full vehicle cost at the 76¢ IRS rate (includes fuel): $11.40

Example: an HVAC tech in a gas van, using the IRS rate as the vehicle cost, runs about $28.50 per drive before labor burden. At four drives a day, that's roughly $114 per tech per day spent getting from one job to the next. Over 240 working days, it's about $27,000 per tech a year. Your numbers will differ; the scale is the point.

This is the cost side. If you're working out how to bill customers for that drive, our post on how to charge for travel time covers trip charges, zone pricing and how to word it on a quote.

Should you add a fuel surcharge?

A fuel surcharge for service calls passes part of the fuel spike to customers while prices are high, then disappears when they come down. Done well, it's transparent. Done badly, it reads like a junk fee.

A simple formula

1. Pick a base fuel price. This is the price your current rates were built on. Example: $3.50 a gallon for gas, $4.00 for diesel.
2. Use the current EIA price for your region as the trigger, checked monthly.
3. Calculate the difference per mile: (current price − base price) ÷ your mpg.
4. Charge it per mile or as a flat amount per call.

Example, using the national averages from October 26, 2026:

• Gas van: ($4.269 − $3.50) ÷ 14 mpg = about 5.5¢ per mile. On a 15-mile trip, about $0.82.
• Diesel truck: ($6.352 − $4.00) ÷ 15 mpg = about 15.7¢ per mile. On a 15-mile trip, about $2.35.

Most shops round to a flat per-call amount, say $3 to $5, because an 82-cent line item looks odd and costs more goodwill than it earns.

Invoice wording example

"Fuel surcharge: $4.00. Applied while regional diesel prices are above $4.00 a gallon (U.S. EIA weekly average). Reviewed monthly and removed when prices fall below that level."

Naming the threshold and source shows it's real and temporary.

The honest trade-offs

• Customers notice. A separate line invites questions in a way a slightly higher service call fee doesn't. Some will push back; a few will shop around.
• Flat trip charges are simpler. One number, no monthly review. But they don't come back down when fuel does, so you're quietly repricing.
• Surcharges are fairer but need upkeep. Someone has to check prices each month and update the amount. If you forget to remove it, you lose the credibility that made it work.
• Members and service agreement customers may expect to be exempt. Decide that up front.

Neither choice is wrong. A flat trip charge is easier to run; a surcharge is easier to defend. Pick based on how your customers react to line items.

Where FSM Navigator fits

You can't price a drive you never measured. In FSM Navigator, the business sets its fuel cost per mile once, and new jobs, estimates and travel costs use it. Update it when you refresh the numbers above.

On Pro, mileage tracking logs every drive to a job automatically, with IRS-ready records and a year-end CSV, so there are no paper logs and no second app. Until you set your own cost per mile, the IRS standard rate is used, valued by each trip's date (72.5¢ before July 1, 2026; 76¢ from July 1). That mileage cost feeds job profitability, which shows the margin on every completed job: revenue against technician labor, parts and mileage cost, with missing costs shown as "Unknown" instead of guessed.

Pro also includes intelligent dispatch, which matches each job to a qualified technician by evaluating skills, availability, workload, proximity and SLA urgency. Picking the closest qualified tech tends to cut the miles between jobs as a byproduct. Whether and how you bill fuel to the customer stays your call.

Fuel is one line in the cost of every job. To see what better dispatch and fewer unpaid miles could mean across your whole operation, try the ROI calculator.