A mobile diesel repair facility at dusk with a service van and a Class 8 truck
Diesel Shop Profitability

Where's your shop leaking money?

A shop can be slammed all month and still broke at the end of it. In about two minutes, see your effective labor rate, your labor efficiency, and roughly how much you're leaving on the table every year - plus the three places it's bleeding.

Find my profit leak ↓ 2-minute estimate · no cost

Busy isn't the same as profitable

Many diesel shops leave real margin on the table with the crew and bays they already have. It hides in a handful of numbers most owners never track: the gap between your posted rate and what you actually realize, the paid hours that never make it onto an invoice, thin parts margin, and the quiet cost of comebacks. This tool turns those into your numbers - and shows you where to look first.

Your effective labor rateWhat you actually realize per paid hour - almost always well below the rate on your wall.
Your labor efficiencyThe share of paid tech hours that reach an invoice. Your single biggest lever.
Where it's leakingUnbilled labor, thin parts margin, and comebacks - split out in dollars.
The Calculator

Five quick numbers

Rough is fine - this is a directional read, not an audit. We assume a standard 40-hour paid week per tech.

$
3. Roughly what share of paid tech hours actually get billed?
4. How do you price parts?
5. How often do repairs come back?
Estimated annual profit leak
$0
left on the table every year

Unlock the full breakdown

See your effective labor rate, your efficiency against target, and exactly how the leak splits across unbilled labor, parts margin, and comebacks - so you know what to fix first.

No spam. Built for mobile diesel & heavy-equipment shops.
How we estimate this

Directional planning estimate, not an audit - built from your inputs, a standard 40-hour paid week, and common industry rules-of-thumb (an 85% labor-efficiency target, and a 25% parts-margin target, since a well-built parts matrix can push parts margin to 25% or more). Typical shops earn less on parts: Fullbay's State of Heavy-Duty Repair 2025-2026 survey puts heavy-duty shops, depending on size, at about 17-21% margin on parts (22-30% markup). Most of the figure is billable labor you already pay for but don't capture. Your real numbers depend on your costs, mix, and market.

MetaFleet - the AI-native system that runs the whole job with you: capture every billable minute in the field, price parts by matrix on the invoice, and sync clean to QuickBooks - so the margin shows up whether or not anyone remembered to chase it.
A free tool for mobile diesel / heavy-equipment shops. Want the full playbook? Read the Diesel Repair Shop Profitability Guide, or the parts markup and inventory guide.