Most people assume the fastest way to kill an engine is to drive it flat-out until something lets go. That’s certainly one way to do it — but it turns out the slow lane can be just as deadly. An engine that spends its life idling, lugging at low rpm, and making nothing but short hops never fully warms up, never burns cleanly, and quietly builds up the kind of carbon and sludge that can end its life just as surely as a redline-happy lead foot.
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