At Gibraltar San Roque Refinery (RGSR), we understand that energy is not a one-size-fits-all commodity. With environmental regulations evolving and industry needs becoming increasingly specialized, fuel customization has become essential. Our Fuel Blending & Custom Formulation service empowers industries, governments, and private clients with bespoke energy solutions engineered for optimal performance, regulatory compliance, and environmental sustainability.

What Is Fuel Blending?

Fuel blending is the precise mixing of various hydrocarbons, additives, and base fuels to create a finished product that meets specific criteria. Whether it’s gasoline tailored to regional octane requirements or ultra-low-sulfur diesel for regulated markets, RGSR’s blending operations ensure every drop of fuel meets its design purpose with reliability and consistency.

Why Custom Formulations Matter

Different engines, climates, and applications demand different fuel characteristics. A mining company operating in a cold Nordic region will have vastly different needs than a logistics fleet in a warm, humid coastal city. Our custom fuel formulations allow us to:

• Meet Regulatory Standards: We ensure all blends conform to international, regional, and local emission and fuel standards.
• Optimize Engine Performance: Formulated blends improve fuel efficiency and engine longevity.
• Reduce Environmental Impact: Our environmentally conscious additives and blend designs lower carbon emissions, particulates, and sulfur content.
• Support Niche Markets: From aviation fuel additives to military-grade diesel, RGSR meets the specific needs of high-demand sectors.

How RGSR Delivers Blending Excellence

Our custom blending process is built on five key pillars:

1. State-of-the-Art Blending Infrastructure

Our refinery is equipped with sophisticated inline and batch blending systems capable of handling multiple feedstocks simultaneously. These systems ensure homogeneous mixing and real-time composition tracking, enabling us to produce fuels with exceptional accuracy.

2. Strategic Feedstock Access

Thanks to our location at San Roque Port, we receive a steady, diverse stream of crude and intermediate products. This diversity gives us the flexibility to develop a wide range of blends — from high-octane unleaded petrol to marine bunker fuels with precise sulfur content.

3. In-House Chemical Expertise

Our fuel chemists and process engineers collaborate to develop blends that meet client specifications down to the molecular level. Every blend is backed by research and tested in our advanced lab for flash point, density, cloud point, sulfur content, and more.

4. Real-Time Quality Control

Quality control is not just a final step — it’s embedded throughout our blending process. Automated analyzers monitor key fuel properties throughout blending cycles, ensuring consistency and conformity at all times.

5. Global Compliance Knowledge

Different markets have different standards — from Euro 6 fuel mandates in Europe to ASTM specifications in North America. Our compliance team stays ahead of regulatory changes, ensuring that every blend is legally fit for its destination.

Blend Types We Offer

RGSR provides a wide range of custom fuel blends, including:

• Automotive Fuels (Gasoline, Diesel, E10–E85 Ethanol Mixes)
• Aviation Fuels (Jet A-1, Military Spec Jet Fuels)
• Marine Fuels (VLSFO, HSFO, MGO)
• Industrial & Generator Fuels
• Biofuel and Renewable Blends

We also support additive packages such as detergents, stabilizers, anti-corrosion agents, and cold-flow improvers.

Client-Focused Customization Process

Whether you’re a fuel distributor, government agency, or industrial consumer, our custom formulation service follows a tailored process:

• Needs Assessment: We gather technical and regulatory requirements from the client.
• Blend Design: Our chemical team designs a compatible formulation using our library of blend components.
• Pilot Batch Testing: We create a test sample and conduct performance validation.
• Approval & Scale-up: Upon approval, full-scale blending begins with continuous quality checks.
• Documentation & Delivery: We provide safety data sheets, compliance certifications, and manage logistics for delivery.

Applications of Our Custom Fuels

• Cold Weather Diesel: Engineered with anti-gel properties to ensure smooth performance in sub-zero conditions.
• Eco-Friendly Fleets: Low-sulfur, low-aromatic fuels for clean transportation fleets in urban zones.
• Heavy Industry Fuels: High-energy diesel and bunker fuels designed to power mining equipment and generators.
• Military & Emergency Use: Stable fuels with long shelf-life and high energy density, suitable for disaster response and defense.

Sustainability Through Blending

RGSR is committed to helping our clients transition toward cleaner fuels. Our blending program includes:

• Biofuel Integration: We offer blends with FAME, HVO, and ethanol to reduce lifecycle emissions.
• Emission Reduction Additives: We incorporate advanced additives to decrease particulate matter and NOx emissions.
• Carbon-Tracking: Our systems allow us to track and report the carbon intensity of blended fuels, aligning with global climate targets.

Why Choose RGSR for Fuel Blending?

✅ Proximity to Major Maritime Routes

✅ Extensive Component Inventory

✅ Fast Turnaround on Custom Orders

✅ Certified and Compliant Products

✅ Export-Ready Logistics Capabilities

Partner with RGSR for Smarter Fuel Solutions

Fuel requirements are becoming more complex — and RGSR is here to meet the challenge. Our Fuel Blending & Custom Formulations service brings you precision, performance, and peace of mind, whether you’re fueling a nation, a fleet, or a facility.

Need a custom blend?
Contact our team today to discuss your formulation goals.