What is the difference between diesel and petrol, and why can’t cars take both?
In: 5
diesel needs compression to ignite, petrol doesn’t. if you compress gas before you
ignite it in a diesel engine, you’ll generate more force than it is built for. diesel in a petrol engine won’t ignite without the compression and will just make a mess.
edit: you can design an engine to use both, but it’s more complex and therefore expensive so people generally don’t.
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