OK, I've been siderailed with holiday stuff, company, etc., over the past couple of weeks from pursuing anything related to the main purpose of this thread. Hope to get back on it soon and at least get these upstream O2 sensors changed out. I'll post when I do.
Meanwhile, can't resist posting these 2 pics regarding the 20K oil change interval products. Do I realize that companies often over-tout the performance of their products for sales/advertising purposes? Yes, of course I do. However, it's a free country and I chose several years back to try out these products and the 20K intervals, b/c I was spending so much at the time on fuel and oil changes. Sure, I know it was a gamble but so far as I can tell, it's worked out (although as I discussed in previous posts I've never gone past 11K in the X).
You know, people once thought tomatoes were poisonous. Then, some guy decided to risk everything and try one on a BLT and he didn't die. I can understand anyone not wanting to try a tomato. Just lucky for me that guy did, though, else I wouldn't have any ketchup for my cheeseburgers and fries.
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