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I'm coming up on 5k with mobil5000 in my 4.6, but i won't be sending it to the lab. I think i skewed the readings, I changed the air filter, and pcv valve, and had a misfire condition for a few miles, so i replaced ignition wires and plugs also.. I'll do it next time when everything else is fine.
You have to let me know your findings when you do.
I got on a website of people who ran UOA's on Mobil 7500 and the results were really srewed up. They summed it up to their different additive package they now use, (in a nutshell)
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.