What you believe and what's actually true.
Millions of Americans start their cars and walk back inside on cold winter mornings, convinced they're doing their engine a favor. The science tells a different story — and the habit actually traces back to a type of engine that almost no one drives anymore.
If you're still pulling into a quick-lube shop every 3,000 miles, you're probably spending twice what you need to on oil changes. The rule that won't die has a surprisingly commercial origin — and modern engine technology left it behind a long time ago.
When your fuel gauge hits 'E,' most drivers go into full panic mode. But automakers have been quietly building a safety net into your gas tank for decades — and understanding it could save you a lot of unnecessary stress, and maybe your fuel pump too.