- Joined
- Oct 28, 2014
- Messages
- 1,187
I just did UOA and got my report. I would post it, but BITOG doesn't accommodate posting pdf files, and I'm too lazy to manually enter all the data. Getting to the point, my particle count is 14/13/11 compared to my baseline sample of new oil having 17/16/13; so my oil is about 8 times as clean as new oil, all of my wear metals look excellent and my TBN is well within limits...
However, I don't think my air filter is as good as my oil filtration; I've got 30 ppm silicon. (Blackstone and other labs start caution at about 20 ppm Si.). Since I've run the oil only 8K, I've used (and drawn out samples) consisting of almost half a quart. I've got a valve mounted inline to draw samples from, so, I thought, why not "bleed" off a quart and top up with new oil? This should slightly lower my silicon count and raise my TBN.
Having already done this, I ended up topping up 2 new quarts and I'm now 100% full on a 5 quart system. Anybody ever heard of half an oil change? Thoughts? Comments? Why did I save HALF my oil? Answer: Because it's much cleaner by particle count than what comes out of the bottle as new.
However, I don't think my air filter is as good as my oil filtration; I've got 30 ppm silicon. (Blackstone and other labs start caution at about 20 ppm Si.). Since I've run the oil only 8K, I've used (and drawn out samples) consisting of almost half a quart. I've got a valve mounted inline to draw samples from, so, I thought, why not "bleed" off a quart and top up with new oil? This should slightly lower my silicon count and raise my TBN.
Having already done this, I ended up topping up 2 new quarts and I'm now 100% full on a 5 quart system. Anybody ever heard of half an oil change? Thoughts? Comments? Why did I save HALF my oil? Answer: Because it's much cleaner by particle count than what comes out of the bottle as new.