Oil Gun Funnel

Mess-Free Oil Filling for Honda & Acura Engines

The Oil Gun Funnel is engineered to eliminate oil splash back when filling oil on newer Honda and Acura 4-cylinder engines. Many modern engines—such as the L15, K20C, and K24W. Use a small plastic baffle beneath the oil cap that can cause oil to spray back when using an oil gun. This funnel solves that problem for clean, controlled oil filling every time.

Designed with a threaded base, the Oil Gun Funnel securely threads directly into Honda and Acura valve covers for a leak-free fit. Its center tube design allows oil to flow straight into the engine, and prevents splash back. Integrated vents and internal baffles in the base ensure smooth oil flow and mess-free operation during oil changes.

To maximize compatibility, the Oil Gun Funnel includes three interchangeable adapters, making it suitable for a wide range of Honda and Acura engines—including 2010 Civic Si, 2014 Civic, 2025 Pilot, Passport, and more.

Included Adapters:

• S Adapter – Ideal for most V6 engines. Thread the funnel into the adapter, then place the non-threaded end into the valve cover.

• Hourglass Adapter – Threaded on both ends, designed specifically for newer DOHC V6 engines.

• Straight Adapter – Threaded on both ends, functioning as a simple 6-inch funnel extension for added reach.

Lite Version – Reliable for Occasional Use

The Lite Version is manufactured from ASA, the same proven material used in our previous ATF Funnel, Intake Block Offs, and All-A-Round Funnel. This version is designed for light to moderate use while still delivering clean, splash-free oil filling.

• Safe for engine oil, coolant, and ATF

• Heat resistant up to 230°F

• Lightweight and durable for occasional service work

• Ideal for home garages and weekend maintenance

Important Care Note:
Avoid using brake cleaner that contains acetone, as prolonged exposure may damage the funnel and adapters. Non-acetone brake cleaner is safe for this version.

Tough Version – Built for Professional Use

The Tough Version is produced from PPA-CF, one of the most robust materials available in 3D printing. Designed for daily use in harsh shop environments, this version delivers maximum durability and chemical resistance.

• 4× stronger than the Lite version

• Safe for all automotive fluids and chemicals

• Handles brake cleaner with acetone (use in moderation to extend service life)

• Heat resistant up to 340°F

• Built to withstand rough handling and professional shop conditions