The term "Bulletproof" has become quite popular in the diesel community ... coolant leaks, and injector failures. Owners who didn't address problems quickly at the time faced hefty repair costs.

While diesel engine owners continue to seek ways ... where egr delete is part of the intercooler, strong performance injectors , high flow exhaust, and even custom tuning, all combined results ...

When looking for a heavy-duty diesel like the Ford 6.0-liter Power Stroke (2003-2007), figures like torque and towing capacity are usually at the top of the list. However, fuel economy is one ...