Originally Posted By: telecat
And how many do you suppose are actually doing UOA as opposed to just following the current like a school of sardines?
That's a good question. There are an awful lot of posts in the UOA sub-forums so there's at least those people. Then there's the people who look at these reports and say, "Hey, I have that same engine and use that same oil. I should do that OCI too." Not something I would do, nor would I get upset about it if they did.
Originally Posted By: telecat
In addition, the cost of UOA is more than the cost of my oil change. It's close to the cost of a full-syntheic and Wix filter change. Now you're looking at $50 for a DIY oil change. Doing a cost-benefit analysis, my $17-19 oil change with a 3K oci becomes close to a wash, and UOA is probably not necessary with that interval.
I buy the 6 pack of tests from Blackstone and only get TBNs when I increase my interval, so my UOA tests average about $25, so yes, a little more than your 3k oil change. Then again, you do 3 of these changes in the same time period I do one.
I'm still not getting why this upsets you so much.