EVIL ENERGY AN6 PTFE Fuel Line Kit — 10ft Black, E85-Compatible High-Temp Performance

EVIL ENERGY 6AN PTFE Fuel Line Kit is a 10-foot, AN6 (5/16" ID) black PTFE fuel hose engineered for high-temperature, high-pressure automotive fuel systems and compatible with E85 and other fuels.

This AN6 PTFE fuel line kit from EVIL ENERGY pairs a durable polytetrafluoroethylene core with a protective outer braid to deliver reliable fluid transfer where ordinary rubber hose can fail. The hose measures 5/16" (0.31") inner diameter, 0.43" outer diameter, and comes in a 10-foot length—sized for custom routing in engine bays, fuel cells, or aftermarket fuel system upgrades. Designed to withstand extreme service conditions, it resists chemical attack, maintains flexibility under temperature swings, and supports high working pressures.

How does this hose handle hot engine bays and extreme temperatures?

The EVIL ENERGY PTFE core and nylon braided cover tolerate wide temperature ranges without degrading. It’s specified for -76°F to 446°F (-60°C to 230°C), making it suitable for under-hood routes and race applications where heat is an issue.

• PTFE construction resists heat-related softening and chemical breakdown.
• Outer braid protects against abrasion and improves heat dispersion.
• Temperature rating supports both cold starts and prolonged high-load operation.

Can I run ethanol blends like E85 through this AN6 line?

Yes—this hose is compatible with a wide range of automotive fuels, including ethanol blends, as well as lubricants and coolants. Its PTFE liner is chemically inert to most fuel components, so it won’t swell or degrade when exposed to modern fuels.

• PTFE liner resists alcohol, gasoline, diesel, and additives.
• Safe for fuel system applications that use ethanol blends like E85.
• Compatible with oils and coolants for broader use in vehicle plumbing.

What pressure can the AN6 PTFE fuel hose withstand?

The hose is rated for demanding pressure environments—suitable for high-pressure return and feed lines in performance or modified vehicles. It specifies a working pressure up to 1,500 PSI and a bursting pressure around 4,500 PSI, giving a substantial safety margin for most automotive fuel system setups.

• Maximum recommended working pressure: 1,500 PSI.
• Burst pressure: approximately 4,500 PSI for robust safety margins.
• Appropriate for mechanical and EFI fuel system connections when fitted with correct AN6 end fittings.

How should I install and route this PTFE AN6 hose?

PTFE hose is stiffer than rubber lines and should not be sharply bent or folded. For reliable, leak-free service use purpose-built AN6 fittings and clamps, and avoid tight bends; professional installation is recommended if you’re unfamiliar with braided PTFE routing.

• Do not fold or crease the hose; it’s relatively stiff compared with rubber tubing.
• Use correct AN6 fittings and torque to manufacturer recommendations.
• Maintain smooth bends and secure clamps to prevent chafing and vibration wear.

Who is this for? EVIL ENERGY’s AN6 PTFE fuel line kit is aimed at automotive enthusiasts, tuners, and professionals who need a durable, chemical-resistant fuel hose for high-temperature and high-pressure environments. It’s a solid choice for performance street cars, race vehicles, or anyone upgrading fuel plumbing to handle ethanol blends, boosted applications, or long service intervals—so long as you plan routing carefully and fit it with appropriate AN6 hardware.