Versions of South Dakota Codified Laws 37-2-45. Minimum octane rating grades of petroleum in all other counties on LawServer 2023 South Dakota Codified Laws 37-2-45. Minimum octane rating grades of petroleum in all other counties 2022 South Dakota Codified Laws 37-2-45. Minimum octane rating grades of petroleum in all other counties 2021 South Dakota Codified Laws 37-2-45. Minimum octane rating grades of petroleum in all other counties 2019 South Dakota Codified Laws 37-2-45. Minimum octane rating grades of petroleum in all other counties 2018 South Dakota Codified Laws 37-2-45. Minimum octane rating grades of petroleum in all other counties 2016 South Dakota Codified Laws 37-2-45. Minimum octane rating grades of petroleum in all other counties 2014 South Dakota Codified Laws 37-2-45. Minimum octane rating grades of petroleum in all other counties