KongNai Plastic Oil Funnels for Automotive Use Set of 5, Large Flexible Fuel Funnel with Hose for Gas Transfer, Gasoline Funnels for Cars Boat Canning and Bottle

Why I reached for this funnel set

I spend a lot of weekends maintaining small engines and topping off fluids in tight engine bays. Between the mower, a trimmer, a small outboard, and a couple of older vehicles that like the occasional sip of oil, I’ve learned that the right funnel can save time, spills, and a fair amount of swearing. The KongNai funnel set has been living in my garage for a few months now, and I’ve used it for oil, gasoline, coolant, and the occasional household transfer job. It’s a simple kit, but the mix of sizes and the flexible hose have made it one of those grab-and-go helpers I reach for more often than I expected.

What’s in the kit

You get five funnels total:
- One large, wide-mouth funnel with a long flexible hose and a removable mesh screen
- Four standard plastic funnels that nest together for storage

Everything is clear plastic, which I appreciate more than I thought I would. Seeing the fluid level, spotting debris in the stream, and confirming when a funnel is actually clean is easier when the material isn’t opaque.

The headliner here is the large funnel with the hose. It’s the one I use for anything awkward, like filling a mower tank under a hood lip or reaching a recessed oil fill without contorting a rigid spout. The built-in side handle on the large funnel is a small touch that makes a big difference when you’re trying to stabilize the setup with one hand and pour with the other.

Design and build quality

This is a light-duty set. The plastic is thin but decently molded, with the usual mold lines you’d expect at this price point. None of my pieces arrived warped, and the seams on the spouts are smooth enough that they don’t catch on filler necks or hoses. The hose is pliable, holds its shape when gently bent, and hasn’t kinked on me in normal use. The mesh screen sits in the throat of the large funnel and pops out easily for cleaning or when you want maximum flow.

A few practical observations from living with it:
- The clear plastic is a plus for visibility, but it won’t be as UV- or solvent-resistant as heavy-duty shop funnels. I keep mine out of direct sunlight to avoid premature brittleness.
- The nested small funnels fit tightly. The first time I separated them took more patience than expected.
- The side handle on the big funnel is just the right size for a gloved hand and actually helps steady long pours.

If you need something to stand up to daily shop abuse, you’ll want heftier, more chemical-resistant material. For routine DIY use, the build is adequate.

Performance in real jobs

Oil changes on small engines: The long hose is the difference-maker. On my mower and generator, the fill ports are tucked behind shrouds and at odd angles. The big funnel sits securely on the fender or frame, the hose snakes into place, and I can pour from a comfortable position without dribbling oil down the engine. With the mesh screen in place, I’ve also had peace of mind when repurposing oil from clean containers; any stray grit gets caught. Flow through the screen is moderate, so I’ll remove it for cold, thick oil if I’m in a hurry.

Topping off engine oil in a car: The wide mouth makes it easy to pour straight from a 5-quart jug. The hose slips into the filler without touching hot components, and the clear plastic lets me see when flow slows or when air burps back. I found removing the mesh speeds the pour and reduces glugging.

Fueling a lawn tractor and small outboard: Gas cans and awkward tank openings are a spill magnet. The hose gives me the reach and angle control I need, and the screen is useful here—fuel cans that live in the garage can pick up dust, and I’d rather trap it than pass it through. Note: the screen is a coarse strainer, not a fine filter, so it’s meant for visible debris, not water or fines.

Coolant top-ups: The clear funnel helps me see bubbles work their way out as I pour. The side handle is handy for steady, slow fills. I avoid resting the plastic directly on very hot surfaces, but with the hose there’s usually no need to get that close.

Household use: The small funnels are the right size for bottles, dry goods, and general decanting. I keep one dedicated to non-automotive tasks to avoid cross-contamination.

Overall, the flow rate from the big funnel is quick with the screen removed and controlled with it installed. The hose doesn’t collapse under its own weight, and the spout diameters on the smaller funnels cover typical bottle and small engine openings.

Setup, handling, and cleanup

There’s no setup beyond choosing the right funnel for the job. A few tips that improved my experience:
- If the nested small funnels are stuck, twist them in opposite directions rather than pulling straight. A warm rinse can help release them the first time. Storing them with a thin paper towel between sizes prevents binding.
- For fuel, ground yourself and the container, and avoid pouring near ignition sources. The plastic is not anti-static.
- Pre-wetting the mesh screen with the fluid you’re pouring helps reduce surface tension and bubbling on thicker oils.

Cleaning has been straightforward:
- For oil and coolant, a quick rinse with warm soapy water, then a final rinse with clean water. Let them air dry thoroughly.
- For fuel, I typically let the funnel drain, wipe it down, and allow fumes to dissipate outdoors before storage. If you want to wash after gasoline, use mild soap and avoid super-hot water to prevent crazing.
- The mesh screen pops out and cleans easily with a soft brush.

I label my funnels with painter’s tape—one for oil, one for fuel, one for coolant, and one for household. It keeps smells separate and avoids accidental mixing.

Limitations and caveats

• Durability: The plastic is thin. Drop a full funnel onto a concrete floor and you might crack a lip or scuff the hose connector. Treat it like a light-duty tool and it holds up fine.
• Chemical resistance: Routine automotive fluids are okay, but I wouldn’t use these for strong solvents or cleaners that attack common plastics.
• Mesh screen throughput: It’s a coarse strainer and slows flow on cold, high-viscosity oils. Remove it if you need speed, reinstall to guard against debris.
• Tight nesting: The smallest funnels can seize together out of the box. It’s solvable, but worth noting if you’re buying for a quick one-time job.
• No shutoff valve or cap: This is a simple gravity funnel, so you’ll need to control the pour at the source and be mindful when the hose is full.

Value and alternatives

There are premium funnels with thicker walls, integrated valves, or anti-splash features. They’re great for daily professional use. The KongNai set trades those extras for versatility at a budget-friendly price: five sizes, clear plastic, and a hose-equipped main funnel with a screen and handle. For most home garages, that balance makes sense. If you need maximum ruggedness, look for heavy-duty polyethylene or metal-spout options; if you need clean-room precision, look elsewhere. For everyday fluid transfers, this covers a lot of ground without costing much.

Who it’s for

• DIYers and homeowners who maintain small engines and vehicles
• Boat owners dealing with awkward fueling angles
• Anyone who wants a clear, hose-equipped funnel for occasional oil, fuel, or coolant work
• Not ideal for mechanics who need a funnel all day, every day, or for use with aggressive solvents

Final take

The KongNai funnel set isn’t fancy, but it’s genuinely useful. The large funnel with the flexible hose and removable screen solves the two problems that cause most spills: awkward access and unexpected debris. The side handle and clear plastic make pours more controlled and more visible. The smaller funnels round out the kit for bottle-sized tasks.

The trade-offs are predictable at this price: lighter plastic, no shut-off features, and nesting that’s a bit too snug from the factory. Despite that, the set has earned a spot on my pegboard and in my trunk. It’s versatile, easy to keep clean, and it has reduced mess in jobs that used to be mess-prone.

Recommendation: I recommend this funnel set for light- to medium-duty use. If you’re a DIYer looking for an inexpensive, practical way to handle oil, fuel, and coolant without spills—especially in tight spaces—the flexible hose, clear body, and removable screen make it a smart, everyday choice. If you need shop-grade durability or specialized features, step up to a heavier-duty system; otherwise, this set gets the job done with minimal fuss.