RE:PCV and Blow-ByWhile you wait for an answer from the company! I can share what little I know. Been here awhile! The gas doesn't mix with the oil. The unit is suppose to be able to save the user money on oil changes. From testing the oil from these engines the oil change cycle can be extended as the oil doesn't break down as quick. Check the Dynacert website and see the corporate presentation. Also when you check the HG1 - 45B product description pdf. You will see it say Longer Oil Life +25% The Dynacert website has most of the technical question and answers you seek and the rest send them a email as already suggested. Good luck. After review of the warrant news, it would seem that although I'm not happy I wasn't able to have the luxury of the same privilege. But I do see another side of this is that, 10 days above 50 cents and the accelerated sale takes place of the 22 million warrants. This will give them some working capital without anymore private placement and limiting the dilution. So yes price should be 50 cent plus soon enough. Hopefully the market place see value in the ABE certification. In the next few weeks we should see news about this mysterious grocery company that will order units for their reefers. We have the Ontario Government clamping down on heavy trucks. I would also be looking for them to provide incentives for the purchase of the Dynacert units as well. GLTA Olde longs!!!