Submitted by Protoflare t3_11ck5es in askscience
That_Tech_Fleece_Guy t1_ja6s9ym wrote
Reply to comment by KingSpork in If the fuel that goes in car engines is extracted from hydrocarbons, which consist of only Hydrogen and Carbon, and those hydrocarbons react with Oxygen in the air (combustion reaction), to produce CO2 and H2O, why do we get a bad smell from car exhaust fumes if both gases are odorless? by Protoflare
Yeah you’ve never smelled a car with no cat? Super smelly
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