What’s your number?

This post contributed by Nadine Lymn, ESA Director of Public Affairs Many of us still operate under the notion that, as responsible car owners, we should get our vehicle’s oil changed every 3,000 miles to keep our engines running smoothly.  But it turns out that this engrained wisdom is not true if you own a vehicle that is about ten years old or younger.  Newer car models have cleaner-running engines and usually only need oil changes...

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