@VOLVO_V70 My wife and kids drive it. They have no ill effects. However just because they have no symptoms doesn't mean it is safe. I am afraid of long turn effects such as lung cancer.
The purpose of my post was to inform all owners of high-mileage vehicles to be careful that they might be exposed to high levels of toxic fumes from engine oil despite not feeling anything while driving. Driving cars is hazardous to your health and most people don't know it. That was the main point I have been trying to make.
The are no gas analyzers publicly available to test toxicity in cars nor any environmental testing centers in US. Gov and DMV don't requires any toxic testing only Smog.