how does diesel smell
Best Answer: Open the gas tank on any car and sniff. Since that's what gasoline smells like, diesel is the one that smells a whole lot different. You can probably smell the difference. Gas smells like, well, gas, and diesel smells like a homeless person. Gas and diesel have distinct smells also diesel can sometimes have a reddish tint to it and gasoline is usually yellowish. Diesel is oil based and gasoline is a solvent.