Engine sludge can be detrimental to your vehicle's performance. Here's the most common causes, the warning signs to watch for, and how to get rid of it.

TOM: We work on Volvos that develop sludge problems sometimes. What happens is that the crankcase ventilation system gets plugged up and doesn't allow oil fumes to be purged from the engine. So ...

Of equal concern to Hank Cole and his clients, the Alliance for a Clean Environment, is the fact that open pools of sludge polluted with such chemicals as TCE, PVC and dioxin could be washed out ...

RAY: First of all, while denatured alcohol is a solvent, we have no idea whether it does anything to remove engine sludge. TOM: Second, we don’t even know if you HAVE excessive engine sludge.