From AI: The unique Detroit Diesel two-stroke engine sounds

https://share.google/aimode/Q0cUPjS8YxcIDo8kh Growing up in North America, nearly all non-school buses and some trucks (especially oil tankers, and some garbage trucks, especially in the 80 s and 90 s) had these distinct sounded engines, with two main voices (or timbres). In New York, city buses (GM fisbowls and the similar Flxibles) all had one sound, which was distinct [ ]