EVIL ENERGY 5/16" NBR Fuel Hose 25ft — SAE 30R7, 300 PSI Working Pressure, Oil-Resistant

EVIL ENERGY 5/16" NBR Fuel Hose is a 25-foot SAE 30R7-rated fuel line built from oil-resistant nitrile rubber and braided polyester for 300 psi working pressure and reliable fuel transfer.

This reinforced fuel hose combines nitrile rubber (NBR) with polyester braiding to deliver a flexible, oil-resistant line that meets SAE 30R7 specifications. Sized with a 5/16" (8mm) inner diameter and 9/16" (14mm) outer diameter, the hose is engineered for fuel systems, oil circulation, and related fluid-transfer tasks where compatibility with diesel, gasoline, biodiesel, oil, and grease is essential. Temperature tolerance and pressure ratings make it suitable for a range of mechanical and industrial environments.

How strong is the hose and what pressures can it handle?

The EVIL ENERGY hose is designed for demanding pressure conditions, with a working pressure rated at 300 psi and a burst pressure around 1200 psi. Its braided polyester reinforcement and nitrile rubber construction give the hose resistance to collapse and improved durability under pressure cycling.

• Working pressure: 300 psi for continuous operation.
• Burst pressure: approximately 1200 psi for safety margin.
• Reinforcement: polyester braid improves tensile strength.
• Wall thickness: 3 mm for structural integrity.

What fluids and temperatures is this NBR hose compatible with?

The hose is formulated from oil-resistant nitrile rubber, making it compatible with a wide set of hydrocarbons and petroleum-based fluids, including diesel, gasoline, biodiesel, oils, and greases. Temperature limits span from very cold to high-heat environments, so it can function across seasonal and engine-heat variations without rapid degradation.

• Compatible media: diesel, gasoline, biodiesel, oil, grease, and similar fluids.
• Temperature range: -40°F to 257°F (-40°C to 125°C) for versatile use.
• Material resilience: NBR resists swelling and softening from oils.
• Meets SAE 30R7 benchmark for medium-duty fuel applications.

How does the hose size and flexibility affect installation?

This line has a 5/16" (8 mm) inner diameter and a 9/16" (14 mm) outer diameter, making it suitable for standard push-lock fittings and common fuel-system connections. A minimum bend radius of roughly 3.14" (80 mm) allows compact routing while avoiding kinks that reduce flow or damage the hose.

• Inner diameter: 5/16" (8 mm) fits many push-on fittings and clamps.
• Outer diameter: 9/16" (14 mm) for clamp and routing clearance checks.
• Minimum bend radius: 3.14" (80 mm) to prevent flow restriction.
• Length: 25 feet per roll for multi-connection jobs or splicing.

What applications are best suited to this SAE 30R7 fuel hose?

Built to exceed SAE 30R7 standards, this NBR hose is appropriate for fuel system lines, oil cooling circuits, and other fuel-transfer tasks on vehicles, equipment, and industrial machines. Its oil resistance and temperature tolerance make it a practical choice for maintenance, retrofits, or new installations where medium-duty fuel handling is required.

• Automotive fuel lines and return lines on engines and generators.
• Oil cooling and lubrication circulation in machinery.
• Marine and small equipment fuel feed lines where compatible fluids are used.
• General shop spares for repairs and custom routing jobs.

Who this is for: Technicians, mechanics, fleet managers, and DIYers who need a dependable medium-duty fuel hose for diesel, gasoline, biodiesel, oil, or grease applications will find this EVIL ENERGY SAE 30R7 line useful. It’s a practical option when you need a 25-foot roll with known pressure and temperature ratings, braided reinforcement for durability, and compatibility with push-lock-style fittings for straightforward installation and serviceability.