Originally Posted By: Greasymechtech
Change the OEM filter as required by the owners manual, or by the oil filter brands recommendation.
Change the Puradyn as required by.... flow, UOA data,... 12k km seems to be a little early and profitable for Puradyn. The TF24 is sump sized for 25-45 quarts. Its a double sized bypass for a 5.9L Cummins and I would simply double the mileage on the filter and verify with UOA. The TF12 if for
Excellent UOA. Get a VOA on the oil.
Where is the Boron and Potassium coming from? Puradyn additive in their filter media? Fuel additives used?
TBN high due to TBN booster in Puradyn media. But, TBN retention with HDEO is pretty good especially since diesel fuel is pretty low sulfur.
TAN is required to watch acids. I would definitely get TAN along with the TBN. TBN alone is not really useful.
And, a particle count will allow you to see what micron sized stuff is passing the filters.
Email that UOA to Puradyn and see what they say about the Boron and Potassium.
What sized orifice is being used to feed the Puradyn?
Thanks Greasymechtech, I forgot about the TF-24 being twice the capacity that I need, I bought this NOS for 75 bucks, so could not pass up the deal. I'll take another oil sample in 12000 KM's and see how it's holding up. The Boron and Potassium are coming from 16OZ of Archoil I added to this oil when I first changed it. The TBN increased due to the Archoil being added, but will slowly drop as time passes. The orifice is .032" down from .094" that it had stock, as is meant for a class 8 tractor. Next oil sample sent will get the tan as well, so I can see that as well. Puradyn does claim to release additives back into the oil, so it will be interesting to see if it really does. So far I'm very happy with the results. Thanks again for your comments.