What about the funnel? these works. Not sure how they will hold up in the cold but the funnels have the holes on the right hand ends.
Funnel King 94100 100-Ml General Purpose Graduated Measuring Container
13 Review
π° Efficient Filling Funnel for EPAuto Radiator Coolant System
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π’οΈ Lisle 19732 Plastic Oil Dispenser - 6 Quarts, White: The Ultimate Solution for Effortless Oil Dispensing!
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Lisle 19802 Threaded Oil/Transmission Funnel: Hassle-Free Pouring and Precision Funneling
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