Ethanol fuel, often lauded for its environmental benefits, has become a common additive in gasoline. However, its impact on older engines and systems is a topic of concern for many vehicle owners.

Like so many matters of public concern, the national dialogue on ethanol tends to the ahistorical and under-informed. Muddying things further is the fact the main parties to this debate—the one over ...

Everyone tells you to use a fuel conditioner, especially when running ethanol-laced fuels in your engine. It’s common knowledge that treating your fuel can help keep it fresh when it sits for long ...