Emergency Diesel Funnel - (Plastic Warning - not all are safe for Fuel)

WARNING - I have been informed ABS and PLA plastic is NOT safe for vehicle fuel
or safe for food stuffs.

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please be sure the printer filament you use is safe for your vehicle's fuel !!!
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Ever used a funnel to add fuel or fuel additive to you car ?
and had to put the funnel back in the trunk without cleaning it ?

fuel or additive residue on