I get mine from small Japaneese restaurant.
Good because they use 100% soybean oil and fry no meats. Only Tempura veggy and some fish. College towns should have plenty of Japaneese rest's...
The oil should look clean and have a cola color /look to it..Finding the good source is #1 mission.
Anyplace that stays away from frying meats....
I don't even buy filters; I filter using an old linen top sheet folded over 2X; over some chicken wire to keep the shape.

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'87 924S
'81 280SEL

Sold ->

81 300SD -
93 300E w/ 3.2
85 300D-
79 300SD
82 300CD
83 300CD - CA
87 190E 5 spd
87 Porsche 924S

"..I'll take a simple "C" to "G" and feel brand new about it..."