For those who are interested.....(don't bother posting regarding the contact info) I'm the least bit worried. None of us are that special. As you can see oil will easily live beyond 1 year. Easily....
No gripes here about spending money on preventative maintenance I've got too much at stake to wait till the last mile, Better than spending $38+ on an analysis. I didn't realize it costs an extra $10 for the TBN. You'd be miles ahead by just changing your oil Just don't use 20w50. That's probably why you've had to rebuild so many big blocks, lol 20181105_133348 by 185 EZ, on Flickr