American Petroleum supplies diesel for electric generators directly to businesses, industrial facilities, hospitals, hotels, and commercial operations throughout Puerto Rico, using its own fleet, with direct deliveries to facilities and an emergency management service for active customers.
With over 40 years of experience operating on the island, we support our customers with ULSD diesel that meets applicable specifications, detailed billing, and a dedicated account representative who coordinates each delivery based on the specific needs of your facility.
Call (787) 794-1985 for assistance with opening your account or scheduling your first delivery.
What generator diesel fuel supply services do we offer?
If your business continuity depends on a generator, having a reliable supply of diesel fuel is an essential part of your operational planning. Here’s how we can help:
Regular on-site delivery of generator diesel fuel
Ideal for businesses with backup generators that need to maintain a recurring fuel reserve.
- How does it work? The customer schedules deliveries with their account representative. The frequency and minimum order are determined based on tank capacity, average consumption, and the facility’s needs. Each delivery includes a detailed invoice and a record of the gallons delivered.
- Key benefit. Our in-house fleet and direct coordination with an account representative make it easy to plan and track deliveries.
→ Schedule your recurring delivery
Diesel Storage Tank Rental
For companies that do not have their own storage tank or whose current capacity might not be sufficient during a prolonged emergency.
- Available capacities. Available options include 500-, 4,900-, and 6,000-gallon tanks. We also offer a 6,000-gallon ISO tank equipped with a meter, pump, and nozzle to supply fuel directly to equipment or vehicles from the customer’s premises.
- Setup time. The equipment may require approximately two weeks of preparation. Availability varies, so it is recommended to coordinate this in advance, especially before hurricane season, from June through November.
- Technical considerations. The pump requires a 220-volt connection. Containment dikes are not included but can be reserved. The final configuration must be evaluated based on site conditions and applicable requirements.
Emergency diesel fuel delivery for electric generators within 36 hours
This service is intended for active customers who need to coordinate fuel deliveries during hurricanes, power outages, or other emergencies.
- Process. The order must be placed at least 36 hours before the requested delivery date by contacting your account representative directly.
- Important requirement. To be considered active, the account must have at least one delivery on record within the last year. Inactive accounts may not receive priority during periods of high demand.
- Coverage. We coordinate deliveries in all 78 municipalities of Puerto Rico, subject to availability, road access conditions, routes, and logistical coordination during the emergency.
→ Verify that your account is active
Tanker Truck Rental for In-House Distribution
For companies with multiple consumption points or projects in remote locations that prefer to manage their own fuel distribution.
- Capacities. Trucks ranging from 900 to 6,000 gallons, subject to availability and coordination based on the project.
- Important. The rental does not include a driver or insurance policy. The customer must provide the appropriate insurance and comply with the applicable requirements for operating the vehicle.
Who We Serve with Our Diesel Fuel Service for Electric Generators
| Sector | Why They Choose Us | Most Commonly Used Service |
| Hospitals and Healthcare Facilities | They rely on backup systems to keep essential equipment and areas running during a power outage. | Recurring deliveries and emergency service |
| Pharmaceutical industry | Their production and storage processes require uninterrupted power supply and supply planning. | Scheduled deliveries and commercial accounts |
| Hotels and resorts | They use generators to keep critical areas running, such as kitchens, HVAC systems, and emergency lighting. | Recurring Delivery + Tank Rental |
| Transportation and Logistics Companies | They need fuel for both their vehicles and the generators located in warehouses and distribution centers. | Fleet Card + On-Site Delivery |
| Supermarkets and Retail | A power outage can affect refrigeration, product preservation, and operational continuity. | Contingency Plan + Emergencies |
| Municipalities and government | They may require fuel for facilities, pumping equipment, communications, and other essential services, in accordance with their contracting and billing processes. | Credit account + annual contract |
| Data centers and telecommunications | They need backup systems and fuel availability to support critical equipment and infrastructure. | Scheduled deliveries + tank rental |
Why Choose American Petroleum as Your Diesel Fuel Supplier for Electric Generators in Puerto Rico
- Direct delivery throughout the island.
- Certified ULSD diesel fuel, suitable for generators with SCR systems, as specified by the manufacturer.
- Dedicated account representative, not a call center.
- Over 40 years of continuous operation in Puerto Rico.
- Authorized by the U.S. Coast Guard for certified marine fuel supply.
How to Place Your Order for Generator Diesel with American Petroleum
- Step 1 – Contact us. Call (787) 794-1985 or email info@americanpetroleumpr.com. An account representative will contact you to guide you through the service.
- Step 2 – Tell us about your operation. Share the generator type, tank capacity, estimated fuel consumption, delivery area, and access conditions to the facility. With this information, our team can evaluate the available supply options. If you’re unsure how much fuel your generator needs, you can check here.
- Step 3 – Open your account. We’ll guide you through the cash or credit account options and the documents needed to complete the process.
- Step 4 – Schedule your first delivery. Work with your account representative to set the delivery date and, if necessary, a delivery frequency based on your operation’s consumption.
Request assistance to open your account or schedule your first diesel delivery: (787) 794-1985 | info@americanpetroleumpr.com
Frequently Asked Questions About Diesel Fuel for Electric Generators in Puerto Rico
What type of diesel fuel does an electric generator need?
Modern generators require ULSD (Ultra Low Sulfur Diesel) with a maximum of 15 ppm sulfur, a mandatory standard in the U.S. for on-road vehicles since 2006, non-road vehicles since 2010, and locomotives/marine applications since 2012, according to regulatory fuel standards. It protects aftertreatment systems such as DPF and SCR and is the only type distributed by American Petroleum.
How much diesel does an electric generator consume per hour?
| Generator Power | Consumption at 50% Load | Consumption at 75% Load | Consumption at 100% Load |
| 20 kW | 0.7 gal/h | 1.1 gal/h | 1.4 gal/h |
| 50 kW | 1.8 gal/h | 2.6 gal/h | 3.5 gal/h |
| 100 kW | 3.5 gal/h | 5.0 gal/h | 7.0 gal/h |
| 200 kW | 7.0 gal/h | 10.0 gal/h | 14.0 gal/h |
| 500 kW | 17.5 gal/h | 25.0 gal/h | 35.0 gal/h |
Note: Reference values based on manufacturers’ averages; consult the generator’s technical specifications for an exact calculation.
How often should the diesel in a generator’s tank be replenished?
It depends on consumption, as well as the tank’s capacity, temperature, water content, condition, and turnover. Example: A 100 kW generator with a 250-gallon tank operating at 75% load has an approximate runtime of 50 hours. Keep the tank level above 50% and schedule recurring deliveries. Stored diesel degrades within 6 to 12 months without additives, according to ASTM standards and industry practices.
Does American Petroleum deliver diesel for electric generators throughout Puerto Rico?
Yes, with our own fleet based in Toa Baja and Ponce, covering all 78 municipalities in Puerto Rico. We coordinate directly with account representatives regarding routes and access, even in adverse weather conditions.
How long does an emergency diesel delivery take?
Plan for a minimum of 36 hours’ notice for active customers. During hurricanes or widespread power outages, delivery times may be longer; priority is given only to active accounts with at least one delivery in the past year.
What is the difference between ULSD diesel and conventional diesel?
ULSD contains <15 ppm of sulfur, compared to 500 ppm in conventional diesel. It complies with EPA regulations and protects SCR/DPF systems. Using conventional diesel could void the warranty and cause premature failures if not specified in the manufacturer’s instructions.
Can I store diesel for emergencies without special requirements?
Yes, provided NFPA 30 standards are met; however, tanks larger than 660 gallons may require containment dikes, and underground tanks require registration and monitoring. American Petroleum provides guidance on requirements and rents out certified equipment.