[drstephennix]

Originally Posted by utah300rum

I work in the HVAC field that deals with adding glycol to loop systems with fluid using several different means. I am not an expert on the injection by any means, we usually sub that out to a specialist. We would need to know how many gph and velocity the system returne vs the capacity of the hpop lpop and reservoir. Also an accurate diagram of the actual flow pattern. There is a possibility even on an open loop that thru the flow patterns internally that only a portion of that oil recirculates. I bring that up because I have seen systems that have glycol injection systems freeze for odd reasons like velocity differences or flow patterns not allowing the glycol to enter certain areas of the piping. I have also seen in hydronic heating system with piping where yopu actually get simulatniuos opesite flows thru the exact same pipe dur to temperature or viscosity differences. I had a 2" pipe that had heavier glycol water flowing say left to right in the botton of the pipe while at the same time thinner water with less glycol flowed right to left. I would never have believed it if I had not witnessed it myself. And it defied all reason or logic but we proved it by taking samples and temperature reading from the pipe.

I changed my oil 400 miles ago, so I will pull a specific volume of a sample from my pan and put it in a clear glass and spot test on white paper. Then I will pull the same volume from from the reservoir he describes. If there is full circulation the oil should be very close to the same color/transparency. All though not pefect labratory analisys I would say if there is a difference in color/transparency, there is at least to some degree truth in what he claims.

If there are areas where the velocity or flow changes there may be "dead" areas thru that oil injection that would trap oil as he describes. I have rounded everything up today to give it a try tonight as soon as I have time and will post pics

Thanks Utah! I'll be looking forward to your results.