Truck Stop Diesel Volume: What Independent Travel Centers Actually Pump
Diesel volume is the revenue center that makes or breaks a travel center investment. A well-positioned truck stop with dedicated hi-flow diesel infrastructure on an interstate corridor can generate $30,000–$80,000+ per month in diesel gross profit alone. A poorly positioned facility — or one that skimps on truck infrastructure — may struggle to cover its higher build-out and operating costs.
Diesel Volume Ranges by Facility Type
Not all diesel operations are equal. Monthly diesel volumes vary by an order of magnitude depending on the facility type, location, and truck infrastructure:
| Facility Type | Monthly Diesel | Key Driver |
|---|---|---|
| C-store with standard diesel hoses | 3,000–15,000 gal | Local contractors, pickups |
| C-store with 2–4 hi-flow diesel hoses | 10,000–35,000 gal | Light commercial + some OTR |
| Small truck stop (4–6 hi-flow lanes) | 50,000–150,000 gal | Regional OTR traffic |
| Full travel center (8–12 hi-flow lanes) | 150,000–500,000+ gal | Interstate corridor, fleet deals |
The defining variable is truck infrastructure — specifically whether the facility has segregated hi-flow diesel lanes that allow Class 8 tractor-trailers to pull in, fuel both saddle tanks simultaneously at 30+ GPM flow rates, and exit without blocking automobile traffic.
Key Variables for Diesel Volume Projection
Truck AADT Percentage
State DOT traffic counts typically report truck percentage alongside total AADT. For diesel volume projection, truck share is more important than raw AADT. A 20,000 AADT interstate with 15% trucks (3,000 trucks/day) offers far more diesel opportunity than a 40,000 AADT suburban arterial with 3% trucks (1,200 trucks/day).
Look for roads where the truck AADT exceeds 1,500–2,000 trucks per day. Below that threshold, diesel volume may not justify the capital investment in dedicated truck infrastructure.
Proximity to Interstate Interchange
Truck drivers plan fuel stops along interstate corridors, typically at interchanges with visible signage and easy on/off access. Distance from the interchange matters — facilities within 0.25 miles of an interstate off-ramp with highway signage capture significantly more diesel traffic than facilities 1+ mile from the interchange.
Competitive Landscape
Large chain travel centers (Pilot Flying J, Love's, TA/Petro) dominate the national truck stop landscape and have significant advantages: fuel network agreements with major carriers, loyalty programs, 24-hour driver amenities, and professional driver familiarity. An independent competing directly against a Pilot at the same interchange faces an uphill battle.
The strongest independent diesel opportunities exist where:
- No major chain travel center exists within 20–30 miles on the corridor
- The site offers better access or shorter queue times than the nearest chain
- Local/regional trucking demand supplements OTR through-traffic
Infrastructure Investment
The facilities that pump serious diesel volume have invested in:
- Segregated truck fueling islands with adequate maneuvering room for 53' trailers
- High-flow dispensers (30+ GPM) with dual-hose capability for simultaneous saddle tank filling
- DEF (Diesel Exhaust Fluid) at the pump — table-stakes for modern OTR trucks
- Truck parking — drivers need places to sleep, and parking access drives fuel loyalty
- Driver amenities — clean restrooms, showers, laundry, and hot food matter more than you'd think
The Economics of Diesel Gross Profit
Diesel margins are typically higher than gasoline margins — often $0.15–$0.30 per gallon gross margin versus $0.08–$0.12 for gasoline. This reflects the higher infrastructure costs of serving trucks and the value of convenience to professional drivers on tight schedules.
| Monthly Diesel Volume | Gross Margin Range | Monthly GP |
|---|---|---|
| 25,000 gallons | $0.18–$0.25/gal | $4,500–$6,250 |
| 75,000 gallons | $0.18–$0.25/gal | $13,500–$18,750 |
| 150,000 gallons | $0.20–$0.28/gal | $30,000–$42,000 |
| 300,000 gallons | $0.22–$0.30/gal | $66,000–$90,000 |
What Separates Chains from Independents
The volume gap between chain travel centers (80,000–120,000 gallons per lane) and independents (25,000–50,000 per lane) exists for structural reasons:
Fuel network agreements. Major carriers like Swift, Schneider, and J.B. Hunt have negotiated fuel programs with the big chains. Their drivers are often required or incentivized to fuel at specific network locations. An independent without these agreements is competing for owner-operators and small fleet traffic only.
Loyalty programs. Chain loyalty programs (myRewards Plus, Love's Connect) create meaningful switching costs for drivers who accumulate points and rewards.
Brand recognition. When a driver is planning a fuel stop 200 miles ahead, they're searching for brands they know. Independents without strong regional brand presence don't appear on that mental map.
Independents can compete by targeting underserved corridors, offering competitive pump prices, maintaining excellent facilities, and building relationships with regional carriers and local fleet operators.
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