bˈaɪoʊ pɚfˈoːɹməns ɪz ɐ mˈʌltaɪlˈɛvəl mˈɑːɹkɪɾɪŋ kˈʌmpəni ðæt sˈɛlz fjˈuːəl ˈædᵻtˌɪvz, ˈɔfən ɪnðə fˈɔːɹm ʌv "ɡˈæs pˈɪlz", wˌɪtʃ ɑːɹ klˈeɪmd tʊ ɪŋkɹˈiːs fjˈuːəl ɪfˈɪʃənsi ɪn ˈɔːɾəməbˌiəlz.
BioPerformance is a multi-level marketing company that sells fuel additives, often in the form of "gas pills", which are claimed to increase fuel efficiency in automobiles.