ULSD Delivery in Florida — Ultra-Low Sulfur Diesel
Ultra-low sulfur diesel (ULSD) is the standard on-road diesel fuel required by the EPA for all highway vehicles. BettyJet delivers ULSD anywhere in Florida with 48-hour standard delivery.
What Is ULSD?
Ultra-low sulfur diesel is the standard on-road diesel fuel in the United States. ULSD contains a maximum of 15 parts per million (ppm) of sulfur — a 97% reduction from the pre-2006 standard of 500 ppm.
The EPA mandated the transition to ULSD beginning in 2006, with full compliance required by 2010. The dramatic reduction in sulfur content was necessary to enable the use of advanced emissions control technologies — particularly diesel particulate filters (DPF) and selective catalytic reduction (SCR) systems — that are poisoned by high-sulfur fuel.
Today, all on-road diesel fuel sold in the United States is ULSD. The fuel meets ASTM D975 specifications for No. 2-D S15 diesel, with a maximum sulfur content of 15 parts per million. ULSD is also commonly used in off-road applications, though tax-exempt dyed diesel is available for equipment that never operates on public roads.
ULSD's lower sulfur content slightly reduces its lubricity compared to legacy high-sulfur diesel. Modern engine manufacturers account for this, but older engines may benefit from lubricity additives. ULSD is also more susceptible to water contamination and microbial growth in storage, making proper tank maintenance essential.
Common Uses for ULSD
Over-the-Road Trucking
Class 6-8 trucks, tractor-trailers, and delivery vehicles operating on Florida highways require ULSD by federal law.
Construction Equipment
Excavators, bulldozers, cranes, and other diesel-powered construction machinery operating on or near public roads.
Learn more →Transit & School Buses
Public transit systems and school bus fleets across Florida rely on ULSD for daily operations.
Standby Generators
Emergency backup generators at hospitals, data centers, and commercial facilities often use ULSD for compliance.
Fleet Vehicles
Delivery vans, service trucks, utility vehicles, and any diesel-powered fleet operating on public roads.
ULSD Technical Specifications
| Property | Value |
|---|---|
| Sulfur Content | Less than 15 ppm |
| ASTM Standard | ASTM D975 No. 2-D S15 |
| Cetane Number | 40 minimum (typically 42-46) |
| Flash Point | 125°F (52°C) minimum |
| Cloud Point | Varies by season (-10°F to 10°F) |
| API Gravity | 30-42 |
| BTU Content | ~129,500 BTU per gallon |
| Color | Clear to light amber (undyed) |
How BettyJet Delivers ULSD
Delivery Method
Tanker truck delivery direct to your site. Available in full tanker loads (7,500-8,500 gallons) or split loads for smaller volumes.
Minimum Order
500 gallons (may vary by location)
Storage Notes
Store in clean, dry tanks. ULSD is more susceptible to water contamination and microbial growth than older high-sulfur formulations. Keep tanks full to minimize condensation. Recommend fuel stabilizer for long-term storage beyond 6 months.
ULSD vs Off-Road (Dyed) Diesel
| Property | ULSD | Dyed Diesel |
|---|---|---|
| Legal Use | On-road and off-road | Off-road only |
| Federal Excise Tax | Taxed ($0.244/gal federal) | Tax-exempt |
| Sulfur Content | Less than 15 ppm | Less than 15 ppm (same spec) |
| Color | Clear/amber | Red-dyed |
| Price | Higher (includes road tax) | Lower (no road tax) |
| Engine Compatibility | All diesel engines | All diesel engines |
ULSD Frequently Asked Questions
What does ULSD stand for?
ULSD stands for Ultra-Low Sulfur Diesel. It refers to diesel fuel with a sulfur content of 15 parts per million (ppm) or less, as mandated by the EPA since 2006 for all on-road diesel vehicles in the United States.
Is ULSD the same as regular diesel at the pump?
Yes. Since 2010, all diesel fuel sold at retail pumps in the United States is ULSD. The terms are now effectively interchangeable for on-road applications. The 'ultra-low sulfur' designation distinguishes it from older high-sulfur formulations that are no longer available.
Can I use ULSD in off-road equipment?
Yes, ULSD can be used in any diesel engine — on-road or off-road. However, if your equipment operates exclusively off-road, you can save money by using dyed (off-road) diesel, which is tax-exempt but chemically identical to ULSD.
What is the minimum ULSD delivery in Florida?
BettyJet's minimum ULSD delivery is typically 500 gallons, though minimums can vary by delivery location and supplier availability. Contact us at (813) 694-8898 for a quote specific to your site.
How quickly can BettyJet deliver ULSD in Florida?
Standard ULSD delivery is within 48 hours for most Florida locations. Emergency and same-day delivery is available 24/7. Call (813) 694-8898 for urgent fuel needs.
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Order ULSD Delivery in Florida
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