Getting sick from fumes and being forced to drive

Park truck at terminal. Take 5+ days off. Truck losing money so will be given to someone else (who'll also, probably, not smell it). Return to work and be given another truck or go to another company.

 

I don't care how good the money is, it's not worth your health. Thay big paycheck won't be any good to you if you end up in poor health, possibly with a chronic condition. There are lots of jobs out there, you only have one body. Take care of it.

 

Get a CO2 detector online, they make them to plug into your 12v cig lghter.

 

The Venturi effect is exactly what your looking for to eliminate crank case back pressure this is why it's done in race cars.
There comes a point in engine wear when the amount of blow by becomes more than the 1 inch blow by tube can get rid off efficiently this is where the Venturi effect is most useful helping evacuate more blow by gases then the tube could do on its own.
I do believe the Venturi effect on a big diesel would be negligible though because they operate at such low rpm.

 

Oil pressure is low because it's diluted with blow by. Making it really dirty.

My oil got changed every 2 weeks when the pressure dropped. Till it finally got torn down.

Fresh oil makes the pressure back to normal.

 

What brand of oil?
I know shell rottela has the worst noxious fumes out the blow by tube that I have experienced.
I had to switch brands on my Cummins pick up because it made me sick.
I switched to valvoline and no fumes at all