If you pay for TBN, and if you check the box on their oil slip that says you are interested in extending your OCI. If you don't check that box, they won't recommend a longer interval if it's supported by the rest of the analysis.Doesnt B.S. usually suggest going a longer/shorter OCI based on TBN ? Also isn't an EP usually good for 15 K ?
If you pay for TBN, and if you check the box on their oil slip that says you are interested in extending your OCI. If you don't check that box, they won't recommend a longer interval if it's supported by the rest of the analysis.
How come you got the UOA ? Seems like a waste of some good oil only running it 5800 miles then paying for UOA and not finding out how long you can run it.That is correct, this car has gone longer, but at this point 5000ish is what i do it on, HMEP is as good of deal as anything when you get it at rebate time...
How much more for TBN ?If you pay for TBN, and if you check the box on their oil slip that says you are interested in extending your OCI. If you don't check that box, they won't recommend a longer interval if it's supported by the rest of the analysis.
Ten bucks.How much more for TBN ?
How come you got the UOA ? Seems like a waste of some good oil only running it 5800 miles then paying for UOA and not finding out how long you can run it.
Following up on Artem's comment, TBN and how long you could potentially drive on the oil is just one small component of a UOA. Wear metals, presence of coolant, water, fuel or other contaminants (insoluables), and viscosity shearing are all still part of a UOA without TBN. Not a waste in any way, shape or form IMO.How come you got the UOA ? Seems like a waste of some good oil only running it 5800 miles then paying for UOA and not finding out how long you can run it.
I understand but if you read the Blackstone Comments it say's that "Wear metals have been steady for a while" so no problem there after how many UOA's. At this point wouldn't you try running the oil to it's potential ? Isn't Mobil EP a 20K oil ?Following up on Artem's comment, TBN and how long you could potentially drive on the oil is just one small component of a UOA. Wear metals, presence of coolant, water, fuel or other contaminants (insoluables), and viscosity shearing are all still part of a UOA without TBN. Not a waste in any way, shape or form IMO.
Their 20k oil costs $2 per 5qt more than their 10k oil. I'd be okay sticking with my comfort zone on how far to take it, even if it's way less than 20k miles. Probably the only way I'd actually even consider taking it 20k miles is if I was driving well over 20k miles per year.I understand but if you read the Blackstone Comments it say's that "Wear metals have been steady for a while" so no problem there after how many UOA's. At this point wouldn't you try running the oil to it's potential ? Isn't Mobil EP a 20K oil ?