I managed to get a bag of ground Sichuan chili from Mala Market a few weeks ago (https://themalamarket.com/collections/sichuan-spices-dry-goods/products/sichuan-chili-flakes-xiang-la-jiao-mian) and made some chili oil. It made a noticeably different chili oil - quite a bit more heat (the one with Korean ground chili was quite mild) and a slightly different flavor.
