That's correct, there's less "Techron" at the pump, than you are getting in that 12 (or is it 20?) ounce bottle.....which is why they often refer to it as "Chevron Techron Concentrate".......
To the op though.....I'd give the additives a couple hundred miles to set in though, and go ahead, send in a sample
It would be interesting to note, how the engine "wore" while actively using additives in the fuel......but yea, perhaps the Seafoam would have the most drastic affect since it does contain IPA....which is said to be a drying agent......but it's still marketed, and widely USED in the intake, oil, and fuel....so even the little bit that may have leaked past the rings into the oil.....shouldn't harm anything
Per the can, you can safely dose 1.5 ounces of Seafoam per quart of Oil.....
For the gasoline treatment, you dose 1 oz. per gallon of fuel though
And unless you are running extremely rich, the majority of that fuel is going to burn off....so not all that much Seafoam "should" technically be leaking past the rings, and into the oil
Now, if you were taking the vehicle to high revs/redline, like most of these Seafoam-youTubers do......then yea, you'll likely see a bit higher wear numbers
BUT, it'll make a good baseline and/or "comparison" mark, to compare with your next used oil analysis, "without" the seafoam and high revs