[Grover432]

I've been reading the expert opinions above and here is my take:

1. We don't know all of the harmful effects of diesel exhaust, but what do know is it is not good for your health;
2. We know that inhaling any exhaust (carbon monoxide, etc.) is bad for you;
3. We know the environmentalists would like everyone to walk.

I suggest that there is no greater risk of cancer driving a diesel car vs driving a gas powered car. Forget China which is a different case - the air in Beijing is so thick with smog from industrial and automotive sources, everyone is going to get very sick despite all of the people riding their bicycles with those white paper masks to protect them from I don't know what (LMFAO).

In Europe people have been driving diesels for decades. Has anyone found any study showing a higher incidence of lung cancer in Europe over the last several decades?

For what its worth, if you don't have an exhaust leak and you don't sit in an enclosed space with your engine running (regularly) what could be the harm in driving a diesel car?