8AN PTFE Fuel Line Kit 20ft - High Temp E85 Ready Fuel Hose

In this review the EVIL ENERGY 8AN PTFE Fuel Line Kit is evaluated for performance and fit in high-pressure, high-temperature fuel systems. The bottom line: this 20ft, 8AN PTFE hose is best for builders who need a durable, E85-compatible line with excellent pressure and temperature ratings, and who are prepared to do or hire careful, professional installation. It stands out for material quality and pressure capability, but buyers should measure fittings and expect a relatively stiff hose that cannot be folded.

Key Features

• Size: The 8AN hose with 0.39in ID and 0.55in OD comes in a full 20ft length, giving installers ample run for custom plumbing or routing through an engine bay.
• Temperature Range: Rated from -76F to 446F, the hose suits extreme thermal environments where conventional rubber lines would soften or degrade.
• Pressure Capability: A 1500psi working pressure and 4500psi burst rating provide strong safety margin for high-pressure fuel systems and boost-fed setups.
• Compatibility: PTFE with nylon braid is compatible with automotive fuels, E85 blends, lubricants and coolants, so it suits a variety of fluid uses in performance builds.
• Durability: The braided construction resists abrasion and heat, making the line appropriate for long-term installations when routed near hot components.
• Installation Note: The hose is relatively stiff and requires careful cutting and assembly, so professional installation is recommended to avoid kinking or misaligned fittings.

Who It's For

This kit is aimed at experienced DIYers, engine builders and performance shops that need an E85-compatible, high-pressure fuel hose for turbo, high-horsepower or endurance applications. The full 20ft length is useful for custom routing in racecars, track cars and engine swaps.

It is not ideal for casual users who expect a pliable, foldable hose or for anyone unwilling to verify fitting compatibility before purchase; several users reported alignment issues with some fittings, so double-checking measurements and planning for professional assembly is wise.

Pros & Cons

Pros

• High temperature tolerance and broad chemical compatibility make it suitable for E85 and other aggressive fuels.
• Strong working and burst pressure ratings give confidence in high-pressure systems.
• Long 20ft length and robust braid offer flexibility for custom installations and routing.

Cons

• Hose is relatively hard and cannot be folded, which complicates tight routing and requires careful handling during installation.
• Some customers experienced alignment or fitting compatibility issues when assembling ends, so fittings may need attention or modification.

Specifications

Our Verdict

The EVIL ENERGY 8AN PTFE Fuel Line Kit is a solid choice for performance-oriented fuel systems that require E85 compatibility and high pressure tolerance; it offers good value for custom builds when installed by a knowledgeable technician. Buyers should be prepared for a stiff hose and verify fitting compatibility before assembly.

Frequently Asked Questions

Is this hose compatible with E85?
Yes, the PTFE construction and nylon braid are rated for automotive fuels including E85 and common lubricants.

Can the hose be folded for tight bends?
No, the hose is relatively hard and should not be folded in half; maintain the minimum 4in bend radius and consider professional routing.

Will the fittings leak or require special assembly?
Most users report leak-free performance when properly assembled, but some experienced fitment alignment issues, so careful measurement and professional installation are recommended.