Stumbled across this beauty on the Internet. It is an oil funnel that attaches directly to the oil fill port in place of the cap. It seals so the oil doesn't get on the engine. After it's on, you have both hands free to add oil to the engine. It comes in several versions, depending on the vehicle. I bought the one that fits VW/Audi/Toyota. They have other funnels that fit GM; Chrysler, Dodge, Jeep; Toyota, Lexus, Scion; Subaru; Honda, Accura; BMW; Ford.
https://www.motivxtools.com/collections/oil-funnels or https://www.amazon.com/stores/page/...8a68-9062-4ad4-b4b7-d24b1bd2234b&ref_=ast_bln
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https://www.motivxtools.com/collections/oil-funnels or https://www.amazon.com/stores/page/...8a68-9062-4ad4-b4b7-d24b1bd2234b&ref_=ast_bln
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