3/8 Fuel Hose Line SAE 30R7 25FT 300PSI - Durable NBR Rubber

In this review the EVIL ENERGY 3/8 fuel hose line is evaluated for mechanics and DIYers who need a durable, oil-compatible hose for fuel systems and related duties. The bottom line: it stands out for its heavy-duty NBR construction and 300psi working pressure, making it a dependable choice for fuel, diesel and oil lines where wear resistance and temperature tolerance matter. The reviewer found the hose easy to route and resilient under heat, and its SAE 30R7 rating gives reassurance for under-hood and fuel-system use.

Key Features

• ID and OD: The 3/8 in inner diameter and 2/3 in outer diameter provide a common fit for many fuel fittings while keeping flow losses low.
• Working Pressure: Rated at 300psi working pressure and 1200psi burst pressure, it is engineered to handle typical fuel system demands with a strong safety margin.
• Material: Made of NBR rubber with braided polyester fiber, the hose resists oil and wear, extending service life in contact with fuels and lubricants.
• Temperature Range: The broad -40F to 257F range makes the hose suitable for cold starts and high under-hood temperatures without hardening or softening prematurely.
• Medium Compatibility: Compatible with gasoline, diesel, biodiesel, oil and grease, so it works across fuel and lubrication tasks without rapid degradation.
• Bend Radius: A minimum bend radius of 3.9 in allows routing in tight spaces while avoiding kinking when installed correctly.

Who It's For

This hose is ideal for automotive technicians, custom fabricators and experienced DIYers replacing or extending fuel lines, oil cooling lines or steam emission lines where SAE 30R7 performance is expected. The combination of NBR construction and braided reinforcement suits applications that see regular exposure to oil and fuel and moderate to high temperatures.

Less suitable are very low-pressure vacuum lines, specialty chemical transfer, or installations requiring FDA-grade tubing; those users should look for hoses specified for those exact media or regulatory needs rather than a general-purpose fuel hose.

Pros & Cons

Pros

• Durable NBR with braided fiber means good resistance to oil, wear and abrasion in engine bays.
• 300psi working pressure and 1200psi burst provide a solid margin for common automotive fuel-system pressures.
• Wide temperature tolerance from -40F to 257F keeps the hose functional across seasonal extremes and hot engine compartments.

Cons

• Outer diameter and wall thickness require matching fittings and clamps; users must confirm fit with existing hardware.
• Not intended for specialty chemical or food-grade use, so compatibility is limited to fuels, oils and greases listed.

Specifications

Inner Diameter	3/8 in (9.5 mm)
Outer Diameter	2/3 in (17 mm)
Wall Thickness	3 mm
Working Pressure	300 psi
Burst Pressure	1200 psi
Temperature Range	-40F to 257F
Standard	Meets SAE 30R7

Our Verdict

The EVIL ENERGY 3/8 fuel hose delivers a reliable, well-specified option for anyone replacing or installing fuel and oil lines where SAE 30R7 performance is required. Its NBR construction, braided reinforcement and broad temperature range make it good value for engine-bay service and custom fuel systems, provided the installer confirms fitting compatibility and does not need specialty chemical or food-grade tubing.

Frequently Asked Questions

Can this hose handle gasoline and diesel?
Yes, the NBR material is compatible with gasoline, diesel, biodiesel and common oils listed for this hose.

Is the hose suitable for high-heat engine compartments?
Yes, the rated temperature range to 257F makes it appropriate for most under-hood applications, though routing away from direct exhaust contact is still recommended.

Will it fit my fittings and clamps?
Check that your fittings match a 3/8 in ID and the 2/3 in OD; proper clamps and hose ends sized for SAE 30R7 are recommended to ensure a secure connection.