Looking at the bottle the cutoff for high mileage is 75K. What's going on? I'm at 165K+ with my 2003 V8 4Runner and I consider it just about broken in. My 4Runner can't be that much different than millions of other vehicles out there, so what the heck is this 75K number doing there? I know the level on the dipstick moves during my 10K OCI with 0w-30 synthetic oil but it's never more than 1/4th of an inch or so. I'm not going to change what's working just because of a mileage number from someone in a marketing department somewhere especially when I don't believe them.