TEC Products FlexAll 16" Long Flexible Oil Change Funnel — 5" Mouth, Nitrile Rubber for Engine & Transmission Fluids

The TEC Products FlexAll Long Flexible Oil Change Funnel is a 16-inch single-piece nitrile rubber funnel designed for spill-free transfer of engine oil, transmission fluid and other automotive liquids.

Built from resilient NBR (nitrile butadiene rubber), this flexible automotive funnel stays pliable across a wide temperature range while resisting oils, fuels and antifreeze. Its 5-inch diameter mouth and smooth interior make topping up reservoirs and performing oil changes faster and cleaner than brittle plastic funnels. Manufactured in the USA by TEC Products, the FlexAll funnel aims to be a durable, reusable shop accessory for home mechanics and professional technicians alike.

How does the FlexAll funnel reduce spills and mess during oil changes?

The funnel’s long, single-piece nitrile construction maintains shape under pressure and minimizes drips by channeling fluid smoothly from the wide mouth to narrow openings. A smooth internal bore prevents catch points for residue that can lead to splatter when fluid flow resumes.

• 5" diameter mouth for easy pouring from bottles and jugs
• 16" length reaches deep or recessed filler necks
• single-piece design avoids seams that trap fluid
• smooth interior reduces splashing and residue buildup

What fluids and temperatures can this funnel handle?

FlexAll is formulated to tolerate a broad spectrum of automotive liquids without degrading. From engine oil and ATF to diesel, gasoline and ethylene glycol-based antifreeze, the nitrile compound resists swelling and breakdown that can occur with weaker plastics.

• compatible with engine oil, gear oil, transmission fluid and hydraulic fluids
• works with gasoline and diesel in fueling or transfer tasks
• temperature range: -21°F to +221°F for year-round garage use
• resists common petroleum-based and glycol-based fluids

How durable and serviceable is the TEC Products FlexAll funnel?

Designed for repeated shop use, the funnel’s nitrile rubber resists cracking and impact that often ruins plastic funnels. The material retains flexibility over time, so it’ll bend into tight spots without splitting and can be rinsed clean after each job.

• nitrile rubber construction resists tears and brittleness
• single-piece molding eliminates weak seams
• easy to clean — rinse or wipe for quick reuse
• Proudly USA-made by a family-run manufacturer

Will the funnel fit into tight filler necks or transmission ports?

The length and tapered profile let you feed fluids into recessed or awkward openings while staying outside the engine bay. Its flexibility allows you to curve the funnel to match the angle needed without disconnecting or repositioning containers.

• 16" length reaches deep filler necks and hard-to-access ports
• flexible body bends around obstructions for precise pouring
• wider mouth accepts jugs, bottles and pump nozzles for steady flow

Who is this for: The TEC Products FlexAll funnel is aimed at DIY mechanics, mobile technicians and shop owners who need a long-lasting, multipurpose funnel that tolerates fuels, oils and coolants. It’s a practical pick for anyone who performs routine maintenance, works on multiple vehicle types, or wants a reusable, easy-to-clean funnel that reduces spillage and stands up to frequent use.