What Is Renewable Diesel (R99 Diesel) And How It Works

Renewable diesel is a next-generation, low-carbon diesel produced from renewable feedstocks like used cooking oil, animal fats, and plant-based oils. Unlike biodiesel (FAME), R99 diesel is a hydrotreated renewable diesel, also known as HVO, that is chemically similar to petroleum diesel. It meets ASTM D975 and can be used as a direct replacement in any diesel engine.

R99 renewable diesel is typically 99% renewable content with 1% necessary additives to ensure optimal performance. It delivers high cetane, excellent cold starts, lower aromatics, and cleaner combustion. You get the dependable power you expect from ultra-low sulfur diesel, with significantly reduced emissions and a lower carbon intensity.

• No modifications required. Use it as a true drop-in fuel in existing tanks, vehicles, generators, and off-road equipment.
• Year-round performance. R99 diesel offers stable storage, strong cold-flow properties, and high lubricity when properly additized.
• Wide OEM compatibility. Many engine manufacturers recognize renewable diesel that meets ASTM D975; always consult your specific OEM guidance.

 

Why Choose R99 Renewable Diesel

R99 renewable diesel helps you hit sustainability targets, reduce maintenance, and improve air quality without disrupting operations.

• Lower lifecycle greenhouse gas emissions compared to petroleum diesel, driven by renewable feedstocks and California’s low carbon pathways.
• Reduced particulate matter and other tailpipe pollutants, supporting cleaner worksites and communities.
• High-cetane combustion for smoother, quieter engine performance and less visible smoke.
• Seamless adoption with no capex, no new tanks or filters, and no retraining required.

 

Renewable Diesel California: Compliance, Incentives, And Credits

California is the nation’s leader in renewable diesel adoption thanks to the California Air Resources Board’s Low Carbon Fuel Standard (LCFS) and complementary state and local air-quality programs. By choosing renewable diesel California fleets can:

• Lower their carbon intensity scores and support corporate ESG reporting.
• Align with city, county, and agency procurement requirements favoring low-carbon fuels.
• Benefit from supply chains optimized for LCFS and federal RIN credits, improving affordability and availability relative to many other states.

We stay current on CARB guidance, local air district rules, and fleet compliance frameworks so you can fuel with confidence. If your organization reports under LCFS or tracks carbon intensity, we can coordinate the documentation you need for audits and sustainability reporting.

 

Where We Deliver: Renewable Diesel San Diego And Statewide

We provide renewable diesel delivery throughout California, with strong coverage across Southern California. That includes renewable diesel San Diego for municipal fleets, construction contractors, marine and port operations, logistics yards, landscaping and paving crews, hospitals, universities, and more. We also serve neighboring metros and corridors across the state through scheduled routes and turnkey wet-hosing.

• On-site fleet fueling during off-hours to reduce downtime.
• Bulk tank fills and jobsite tanks for high-volume operations.
• Scheduled generator refueling for business continuity and emergency readiness.

Need Renewable Diesel Near Me? On-Site Renewable Diesel Delivery For Fleets And Facilities

If you are looking for renewable diesel near me, we make it simple. Our dispatch team plans the route, brings the fuel, meters every drop, and provides clear delivery confirmations and usage data. You get predictable supply, transparent billing, and a single partner for both renewable diesel delivery and traditional ULSD when needed.

 

Drop-In Compatibility: R99 Renewable Diesel Works With Your Equipment

R99 renewable diesel is fully compatible with on-road and off-road diesel engines, tanks, and fuel systems. Because it is a hydrocarbon diesel that meets ASTM D975, you can blend it with ULSD at any ratio or run it neat as R99 diesel without changing filters, injectors, lines, or storage.

• Vehicles and equipment. Works with light-, medium-, and heavy-duty trucks, off-road equipment, and marine diesel where approved.
• Storage tanks. Compatible with standard diesel storage tanks and dispensing systems; follow normal housekeeping best practices.
• Seasonal use. Use R99 diesel year-round; we can advise on additization and storage based on your fleet profile and climate.

If your equipment is under an active warranty or you have specialized aftertreatment systems, we are happy to coordinate documentation that shows ASTM D975 conformity and widely recognized OEM positions on renewable diesel.

 

Emissions Benefits Of Renewable Diesel Vs. Petroleum Diesel

Switching from petroleum diesel to renewable diesel can substantially reduce lifecycle CO2e emissions, depending on feedstocks and pathways. Many fleets also see:

• Lower particulate matter and soot, helping maintain cleaner DPFs and aftertreatment systems.
• Reduced CO and HC emissions.
• Comparable or improved NOx performance relative to ULSD, depending on duty cycle and calibration.

The result is a cleaner burn, less odor, and better air quality on jobsites, at warehouses, near schools and hospitals, and in dense urban cores.

 

For Critical Power: Generators, Data Centers, And Facilities

We support mission-critical operations with turnkey renewable diesel delivery for generators. From hospitals and telecom hubs to industrial campuses and high-availability IT environments, we help you meet resilience goals while lowering carbon intensity.

• Routine and preventive fills to maintain fuel quality and readiness.
• Emergency response refueling during outages and public safety power shutoffs.
• Fuel management programs, including polishing, testing, and compliance documentation.

We also serve data centers that are modernizing toward lower-carbon backup power. Our team understands the uptime requirements and chain-of-custody documentation these environments demand.

 

Technical Specs And Product Assurance

Quality matters. We source from established producers that meet ASTM D975 and rigorous quality controls. For detailed properties, cetane, cold-flow, lubricity, and handling data, download the Supreme Oil renewable diesel product sheet (PDF) available on our site. We can also provide certificates of analysis and batch-level information on request.

 

R99 Availability: California Now, Arizona Status

We currently deliver R99 renewable diesel throughout California. At this time, we do not offer routine delivery in Arizona. If you have multi-state operations that include Arizona, contact us to discuss options; we continually evaluate expansion based on customer demand and supply chain readiness.

 

How To Get Started With Renewable Diesel Delivery

Getting started is simple. Tell us your locations, volumes, and delivery windows, and we will build a renewable diesel delivery plan that matches your operations.

• Site assessment to confirm tank sizes, access, and safety.
• Scheduling that reduces downtime and supports route efficiency.
• Consolidated reporting for sustainability and cost tracking.

If you operate in San Diego, visit our San Diego fuel page to learn more about local service. For emergency and standby power, see our generators page. For enterprise and colocation uptime environments, explore our industries page for data centers. Our team is ready to help you switch to R99 diesel without disruption and start lowering your carbon impact on day one.