is PLA gasoline, diesel or chemical resistant?
I have used both ABS and PLA for diesel gas caps and oil plugs. As well have made a gasoline funnel out of both. Both have done well for me.
I have attach a link to a plastics resistance chart if it is any help. Unfortunately it does not show testing for ABS for all.
I prefer the ABS only do to the fact some items I have made sit in the desert sun.
do you have experience with below freezing temperatures and using PLA for gasoline/diesel?
Only with the oil plug and the diesel tank cap as I have sent those types of items to my son and he live in areas where it freezes. As for the funnels no experience with the cold. But I will note I have had commercially made plastic gas cans and funnels in freezing weather and had them break do to the cold. But no issues with the petroleum itself affecting them.