How Mobile Fuel Delivery Works (Step-by-Step Guide)

Mobile fuel delivery brings commercial-grade fuel directly to your equipment, vehicles, or storage tanks instead of sending drivers to retail stations. The provider operates DOT-compliant tankers, dispatched on schedule or on demand, that meter wholesale-priced diesel or gasoline into your tanks on-site.

For commercial buyers above 1,000 gallons per month, mobile delivery cuts fuel cost per gallon, eliminates driver time at the pump, and replaces card fraud risk with audited tanker-to-tank transactions. This guide walks the entire process — from quote to fuel-in-tank — and explains the equipment, safety, cost structure, and edge cases that determine whether mobile fuel delivery fits your operation.

Quick answer: how mobile fuel delivery works

A mobile fuel delivery service brings ASTM D975 diesel or octane-rated gasoline to your site in a DOT-certified tanker, transfers it through a calibrated meter into your storage tank or directly into vehicle and equipment fuel tanks, and provides a delivery ticket plus invoice tied to publicly-trackable wholesale rack pricing.

The customer typically signs up for a recurring schedule (weekly, bi-weekly, monthly) or calls for ad-hoc delivery, with the supplier handling DOT compliance, EPA spill containment, NFPA 30A safety standards, and tank monitoring. Service is geographically constrained to the supplier's service area — Exigo Fuels covers Miami-Dade, Broward, and Palm Beach counties in Southeast Florida.

The six-step process from quote to fuel-in-tank

Mobile fuel delivery follows a repeatable six-step workflow. Step one happens once during account setup; steps two through six happen on every delivery.

Step 1: Quote and account setup

A new commercial account starts with a request — phone call, contact form, or email — that captures monthly volume, fuel type (diesel, gasoline, dyed off-road, REC-90), delivery location, tank type and capacity, and any access constraints (gate codes, hours, security escort, port access). The supplier returns a quote tied to OPIS or platform-specific rack pricing at named Florida terminals, plus a transparent margin based on volume.

Account setup includes credit application, tax-exempt certification (for off-road dyed diesel customers per IRS §4082), and a site survey to verify access, tank location, fill ports, and offloading clearance. Setup typically completes in 3 to 5 business days; emergency accounts can be onboarded within 24 hours.

Step 2: Order or schedule trigger

For scheduled accounts, the order is automatic — dispatch generates a delivery on the recurring calendar (e.g., every Monday at 6 AM, or whenever a remote tank monitor reads below 40 percent). For ad-hoc accounts, the customer calls or submits an order with required volume, fuel type, and requested window. Dispatch confirms the order and assigns it to a route based on geography, truck capacity, and priority tier (critical / urgent / standard).

Step 3: Tanker dispatch and routing

The assigned tanker — typically 2,500 to 9,000 gallon capacity, multi-compartment for delivering both diesel and gasoline on the same run — leaves the bulk yard with a Bill of Lading documenting fuel volume per compartment, terminal of origin, batch number, and Certificate of Analysis reference.

The driver, certified per 49 CFR Part 172 (DOT Hazmat) and 49 CFR Part 383 (CDL with Hazmat and Tanker endorsements), drives the route with placards displayed per DOT regulations. Real-time GPS tracking lets dispatch communicate ETA to the customer.

Step 4: On-site arrival and check-in

The driver arrives, checks in with the designated site contact (or follows pre-agreed protocol for unattended deliveries), and conducts a pre-transfer safety walkthrough: confirm tank type and fuel grade match the load, verify tank vents are clear, check for ignition sources, ground the tanker per NFPA 30A, set up spill containment (drip pan, absorbent boom).

Hot-work permits, if the site requires them, are pulled and verified. For deliveries to operating vehicles, the driver confirms the vehicle is shut off and parked appropriately.

Step 5: Metered transfer

The driver connects the tanker discharge hose to the customer's tank fill port (or directly to vehicle fuel tank for mobile fueling). Fuel transfers through a calibrated, FDACS-sealed meter that records exact gallons delivered.

Transfer rate is typically 50 to 80 gallons per minute, depending on hose configuration and tank vent capacity. Mid-transfer, the driver monitors the tank level (visually, by sensor, or by overfill prevention shutoff) to avoid overfilling. Lightning detection within 10 miles or sustained winds above 35 mph pause transfer per safety protocol.

Step 6: Documentation, sign-off, and invoice

After transfer, the driver prints or generates digitally a delivery ticket showing date and time, customer site, fuel type, batch reference, metered volume, before/after tank levels, and driver signature. The site contact countersigns. The driver removes hoses, secures the tanker, and departs.

The invoice — itemized per gallon at the rack-tied price plus any agreed delivery fee — is generated electronically and sent to the customer's accounts payable contact, typically before the truck reaches the next stop. Net 30 terms are standard for established commercial accounts.

Equipment used in mobile fuel delivery

Five categories of equipment make commercial mobile fuel delivery possible:

• Tankers (transport vehicles): DOT-spec MC-306 or DOT-406 aluminum tankers, 2,500 to 9,000 gallons typical for last-mile delivery, multi-compartmented for split loads (e.g., 3,000 gal diesel + 2,000 gal gasoline + 1,000 gal off-road dyed). Larger 9,200-gallon transport tankers handle terminal-to-yard runs. Every tanker carries DOT placards (UN1202 diesel, UN1203 gasoline) and is inspected per 49 CFR Part 396.
• Dispensing systems: Onboard pump (PTO-driven or hydraulic), 1.5- to 2-inch discharge hoses (50 to 100 feet for hard-to-reach tanks), automatic shutoff nozzles, vapor recovery for gasoline transfers in vapor-recovery markets.
• Meters: Positive-displacement or turbine flowmeters calibrated and sealed by the Florida Department of Agriculture and Consumer Services (FDACS) Bureau of Standards. Each meter carries a tamper-evident seal and is field-tested annually. The metered volume on the delivery ticket is the legal-trade measurement; FDACS handles disputes.
• Grounding cables: Static-dissipating clamp-and-cable assemblies that bond the tanker to the customer's tank or equipment before transfer, eliminating static-spark ignition risk per NFPA 77 and NFPA 30A. Verified continuity check before each transfer.
• Spill containment kits: Drip pans under all hose connections, absorbent booms staged for spill response, and SPCC-compliant emergency-response procedures per 40 CFR Part 112 if the site has aggregate above-ground storage above 1,320 gallons.

Safety and compliance: NFPA 30A, DOT placarding, EPA spill containment

Mobile fuel delivery is regulated at federal, state, and local levels. Every commercial fuel supplier operating in Florida must comply with the following regulatory framework — and customers should expect documentation of compliance on request.

DOT Hazmat (49 CFR Parts 171-180). Drivers carry CDL with Hazmat (H) and Tanker (N) endorsements. Tankers are inspected and placarded per Part 172 with the appropriate hazard class (UN1202 for diesel, UN1203 for gasoline, UN1993 for combustible liquids). Hours-of-service rules under Part 395 apply. Bills of Lading travel with every load.

NFPA 30A (Code for Motor Fuel Dispensing Facilities). Sets the safety perimeter around fuel transfer operations: minimum distances from buildings, ignition sources, and property lines; grounding requirements; emergency shutoff; signage; and operator training. NFPA 30A applies to mobile fueling sites, not just permanent fueling stations.

EPA SPCC (40 CFR Part 112). Customers with aggregate above-ground oil storage capacity above 1,320 gallons must maintain a Spill Prevention, Control, and Countermeasure plan. Mobile fuel suppliers coordinate with the customer's SPCC plan during delivery, including secondary containment, spill kits, and reporting protocols if a release occurs above the regulatory threshold (typically 25 gallons in Florida).

FDACS Florida Department of Agriculture and Consumer Services. Regulates fuel quality, meter calibration, and consumer-protection aspects of fuel sales. Every commercial fuel meter must be FDACS-sealed and field-tested annually. Fuel quality specifications (cetane, sulfur, octane, distillation) are enforced through unannounced sampling of supplier inventory.

Florida DEP Department of Environmental Protection. Regulates above-ground storage tanks via Chapter 62-762 F.A.C. Tanks above 550 gallons require registration; double-wall containment is required for new installations; operators must report releases above 25 gallons.

Customers should request — and suppliers should freely provide — documentation of DOT operating authority, USDOT and MC numbers, current insurance certificates (auto liability, pollution liability, cargo), and proof of FDACS meter calibration. Exigo Fuels (USDOT# 4223712, MC# 1635478) maintains all four and provides documentation on request as part of standard account setup.

Cost framework: subscription versus ad-hoc, fuel plus delivery fee

Mobile fuel delivery pricing is structured differently from retail. The total cost on an invoice typically breaks down into three or four line items:

• Fuel cost per gallon. Tied to a published wholesale rack price (OPIS, Platts, or specific terminal posting) at named Florida terminals — typically Port Everglades, Tampa, or Jacksonville for South Florida deliveries. The customer can audit any invoice against publicly available rack data.
• Margin per gallon. The supplier's markup, which scales inversely with volume. Smaller customers pay larger margins; high-volume accounts approach rack-equivalent pricing.
• Delivery fee. Either bundled into the per-gallon price (zero-dollar line item) or charged separately. Exigo Fuels typically bundles delivery into the per-gallon price for scheduled commercial deliveries during business hours within the tri-county service area, with after-hours and emergency dispatch carrying surcharges disclosed at quote time.
• Taxes. Federal excise ($0.244/gal on clear diesel, $0.184/gal on gasoline), Florida state fuel tax, and any local-option taxes — all itemized on the invoice. Tax-exempt off-road dyed diesel and tax-exempt customers (utilities, government, qualifying non-profits) carry exemption certificates and pay only base fuel + margin + delivery.

Subscription-style accounts (recurring scheduled delivery) typically receive a slightly better margin than ad-hoc accounts because the supplier can plan routes and tanker utilization. Tank-monitoring accounts — where the supplier reads the customer's tank level remotely and triggers delivery automatically — receive the best margins because dispatching is fully optimized.

For detailed cost analysis including per-gallon and per-mile breakdowns, see our Florida fuel delivery cost guide. To run your own numbers, the fuel cost calculator models scheduled bulk delivery economics versus retail fueling.

When mobile fuel delivery makes sense

Mobile fuel delivery is the right fit for commercial buyers above 1,000 gallons per month, especially when fuel goes to a single yard, depot, construction site, generator location, or marina. Specific applications where mobile delivery wins decisively:

• Fleets with central yard fueling (10+ vehicles): Mobile delivery into a yard tank or directly into vehicle tanks at the yard eliminates retail station detours and produces $0.30 to $0.50 per gallon savings versus fuel cards.
• Construction and infrastructure projects: On-site fueling for excavators, loaders, dozers, generators, and pumps. Off-road dyed diesel is delivered tax-exempt per IRS §4082. See on-site fuel delivery.
• Standby generator operations: Healthcare, data centers, telecom, condos, government facilities — scheduled top-ups maintain readiness and emergency dispatch handles run-time events. See fleet fueling and on-site delivery.
• Marine bunker operations: Workboat, charter, and commercial vessel fueling at Port Everglades, Port Miami, Miami River, and major marinas. Mobile delivery direct to the dockside saves transfer time and avoids dock-line congestion.
• Cold-chain logistics: Reefer trailer fueling at distribution centers — separate dyed diesel for reefer units alongside clear diesel for tractors.

When mobile fuel delivery does NOT make sense

Mobile fuel delivery has real limits. The wrong fit produces frustration on both sides. Honest scenarios where mobile delivery is not the right answer:

• Single-vehicle households or one-truck owner-operators: Volume is too low to clear minimum-order thresholds (typically 250 to 500 gallons per delivery), and account setup costs do not amortize. Use retail or fuel cards.
• Vehicles that regularly leave the service area: Long-haul tractors that fuel on the road need a fuel card program with national network coverage. A hybrid setup — mobile delivery for the base fleet, fuel cards for over-the-road exceptions — works well above 20 vehicles. See our mobile fuel delivery vs fuel cards comparison.
• Sites without safe tanker access: Tight urban alleys, low overhead clearances, structural weight limits on parking decks, or high-security restricted zones (some port and military areas) may be inaccessible to a 20,000+ pound tanker. Site survey identifies these issues during account setup.
• One-time small purchases: A single 100-gallon top-up for a generator that will never need fuel again is better served by a retail run-out service or a portable fuel caddy. Mobile delivery is for ongoing relationships.
• Customers who need DEF, lubricants, or specialty fluids primarily: Mobile fuel delivery focuses on ASTM D975 diesel and octane-rated gasoline. DEF (Diesel Exhaust Fluid) and most lubricants ship through dedicated distributors with different equipment and handling requirements. Some suppliers bundle, some do not — Exigo Fuels delivers fuel only.

How to evaluate a mobile fuel delivery supplier

Six diligence questions that separate credible commercial fuel suppliers from operators who will create operational and compliance headaches once you depend on them. Use these during the initial quote conversation:

1. Operating authority and insurance. Ask for USDOT number, MC number, and certificates of insurance covering auto liability (minimum $1 million typical, $5 million standard for commercial fuel hauling), pollution liability, and cargo coverage. A legitimate supplier has these on file and will email them within an hour. Exigo Fuels operates under USDOT# 4223712 and MC# 1635478.
2. FDACS meter calibration documentation. Florida-trade fuel meters must be FDACS-sealed and tested annually. Ask whether the supplier can provide the most recent meter calibration certificates on request. Suppliers that resist this question are signaling either non-compliance or operational immaturity.
3. Pricing transparency. Ask for a quote that itemizes fuel cost (with named rack reference), supplier margin, delivery fee, taxes, and any surcharges (after-hours, emergency, weekend, holiday). Vague "fuel price" without a market reference is a red flag — legitimate commercial fuel pricing audits cleanly against public OPIS, Platts, or DOE EIA data.
4. Service-area coverage and minimum order. Confirm the supplier serves your specific ZIP code and that your typical order size clears the minimum. For Southeast Florida, Exigo Fuels covers Miami-Dade, Broward, and Palm Beach with no minimum-order surcharge for accounts on a recurring schedule.
5. Emergency dispatch capability and response-time tiers. Critical-infrastructure customers should ask for written response-time commitments by tier (1-hour critical, 2-hour urgent, 4-hour standard) and proof of after-hours dispatch staffing. Smaller commercial customers may not need 1-hour response but should know whether and how the supplier handles weekend and night calls.
6. References and review profile. Ask for two or three references in your industry segment — if the supplier serves construction, name two construction customers; if marine, name two marine customers. Verify the public review profile (Google Business Profile, BBB, Trustpilot) shows real activity over the prior 12 months.

Frequently asked questions

Seven questions our team hears most often during quote conversations and PAA-derived searches. The answers below feed the FAQPage schema attached to this article.

To get a quote for a specific site, call our dispatch team at (305) 900-6725 or request a quote online. We deliver across Miami-Dade, Broward, and Palm Beach counties via our on-site fuel delivery and fleet fueling programs.