TIL - Auto engineers have calibrated gas gauges to be inaccurate, essentially to manage customer expectations.

https://www.npr.org/2011/04/02/135064825/the-gas-gauge-says-full-but-thats-not-quite-true

https://www.reddit.com/r/todayilearned/comments/15os1lw/til_auto_engineers_have_calibrated_gas_gauges_to/