Empowering Denver’s Growth with Premier Fuel Solutions

The efficiency of your equipment depends on the quality of the fuels you use. We offer an extensive range of high-quality fuels designed to enhance performance and maximize efficiency across various applications.

Here’s why businesses trust us:

• Bulk Fuel Delivery Service: Operating one of the largest fleets in the Denver area, we supply diesel and gasoline to leading local companies in industries such as construction, agriculture, and transportation. Our product lineup includes Renewable Diesel, Gasoline, On-Road & Off-Road Diesel, K-1 Kerosene, Unleaded 87E-10 Gasoline, Unleaded 89E-10 Gasoline, Unleaded REC-90 Gasoline, Racing Gasoline, Aviation Fuels, Jet-A, Methanol, Winterized Fuels, VP Racing Fuels, and more. We provide transport trucks for high-volume deliveries and tank wagons for smaller or hard-to-reach locations, ensuring seamless and reliable fuel service throughout Denver and the surrounding Colorado regions.

• • Wholesale Bulk Fuel Delivery: Serving a diverse array of industries—including Agriculture, Aviation, Construction, Industrial Generators, Locomotive, On-Highway Fleets, Mining, Municipalities, and Racing—we deliver customized fuel solutions tailored to meet the specific needs of each client, from small family-owned farms to large industrial entities.
  • Retail Bulk Fuel Delivery (C-Store): We help Denver’s gas stations and convenience stores by providing reliable fuel deliveries, ensuring they can serve their customers smoothly without interruptions.

• National Fuel Network: With our extensive fuel card program, you can refuel anytime and anywhere. Experience nationwide access to fuel and DEF, providing seamless and convenient on-the-go options across the country. Learn more about National Fuel Network.
• Job Site Fueling: We remove the hassle of fuel storage by fueling your equipment directly from our trucks. Our on-site fueling services provide you with immediate access to high-quality fuel, ensuring your operations run smoothly without the need to maintain your own fuel storage infrastructure.
• Fuel Additives: Boost your engine’s performance and enhance fuel efficiency with our range of premium fuel additives. Our product lineup includes Diesel Fuel Additives for both winter and summer, Diesel Fuel Treatments, Gasoline Additives, Gasoline Treatments, Stabilizers, Fuel Injector Cleaners, Octane Boosters, Tank Maintenance Additives (designed to prevent contamination and remove water), and comprehensive fuel testing services.

Rhinehart Oil provides top-quality lubricants to the automotive, commercial (on and off-highway), and industrial sectors in Denver, Colorado. Our products are engineered to offer exceptional equipment protection and enhance performance.

• Mobil™: As authorized distributors of Mobil™ lubricants for over 40 years, we proudly offer a brand renowned for its reliability, efficiency, and versatility across multiple industries.
• Ridgeline™: We supply Parkland’s exclusive Ridgeline™ lubricants, greases, DEF, and antifreeze products, delivering innovative solutions that set industry standards for performance.

Our lubricant lineup includes motor oils—from Passenger Car Motor Oils to Heavy Duty Options—and Industrial Oils. We carry Mobil Lubricants, Ridgeline Lubricants, Automatic Transmission Fluids, Hydraulic Oils, Natural Gas Engine Oils, and more.

For operations that require peak performance, our synthetic lubricants from Mobil™ and Ridgeline™ are engineered to excel in extreme conditions. These products provide unparalleled durability and protection, reducing wear, enhancing efficiency, and extending maintenance intervals. They’re ideal for equipment operating in the harsh environments often found in Denver’s industrial and agricultural sectors.

To help you reduce emissions and comply with environmental regulations, we offer API-certified DEF, including our Ridgeline DEF products. Available throughout our network, our DEF lowers NOx emissions and supports diesel engines using Selective Catalytic Reduction (SCR) technology. We provide DEF in various sizes—from 2.5-gallon containers and 55-gallon drums to 275- and 330-gallon totes, as well as bulk deliveries—to support operations of any size. Contact our Denver branch to learn more or to place an order.

Protect your engines from extreme temperatures and prevent freezing and corrosion with our premium antifreeze solutions. We offer a wide range of products, including Ridgeline, Mobil, Fleet Charge, PEAK–Advance, Global ELC, Final Charge ELC, as well as RV and Marine antifreeze. Distributed across Denver and the surrounding areas, our antifreeze products provide reliable protection no matter where your operations take you.

Rhinehart Oil offers an all-inclusive fleet fueling service designed to simplify your fuel management, enhance control, and boost operational efficiency. We provide convenient on-site fueling solutions, including bulk tank refills and direct fueling of your equipment and vehicles. This not only saves you time but also minimizes downtime. Additionally, you gain access to our company-owned cardlock stations with competitive pricing, helping you avoid unnecessary expenses at gas stations. Our National Fuel Network Fleet Card program grants you access to a nationwide network of fueling sites with over-the-road discounts. This enables you to manage fuel consumption effectively and control expenses, whether your fleet operates within Denver or across state lines.

To assist you in managing your bulk fuel and lubricant needs without significant capital investment, Rhinehart Oil offers equipment rental and purchase options. Our Loan Program provides the necessary support to keep your operations running smoothly, allowing you to focus on important business goals.

Maintain full control over your fuel and lubricant inventories with our 24/7 digital tank monitoring services powered by Otodata. Our system provides real-time data, enabling efficient inventory management. With continuous oversight from our dispatchers and operations team, you’ll never run out of essential products.

Avoid costly equipment failures and extend the lifespan of your machinery with our fluid analysis programs. We offer customized testing options for lubricants and equipment, providing insights that help you optimize performance and proactively address any emerging issues.

Rhinehart Oil offers a wide range of specialty products catering to Denver’s commercial needs. Our selection includes washer fluid, propane, winterized fuel, white oil, spray oil, and more.

Keep your vehicles and equipment running optimally with our top-tier automotive specialty chemicals like TEG (Triethylene Glycol) and EGs (Ethylene Glycols). These products have crucial utility, including dehydrating agents and heat transfer fluids.

We are your one-stop-shop for all industrial specialty products and services. From Glycols (Propylene, Ethylene), Methanol, RIDGELINE™ Washer Fluids, to Drip Oil to Aircraft De-Icer, Kerosene, Solvents, TEG, Racing Fuel, and more, we’ve got everything. For a full list of products, give us a call. If we don’t have what you’re looking for specifically, we’ll work to source it for you.

Protect your critical equipment with our range of industrial lubricants, including fire-resistant hydraulic fluids (FRHF). Developed in collaboration with leading equipment manufacturers, our Mobil™ industrial lubricants are specially formulated to extend lubrication intervals, safeguard equipment under severe operating conditions, and ensure smooth operation across various environments. Whether you require mineral or synthetic-based oils, we have the products to optimize your equipment’s performance.