Probably 90% highway at or above 70mph, frequently cruise on toll roads at ~100mph for extended distances in Texas heat.Always sees a WOT pull to the redline daily when it is warmed up. Previous fill was the same Redline MT-85 oil at 34,500 miles on the sample. Did not have a magnetic plug installed for the sampled analysis but now I do. Will probably run 40,000 miles maximum on the next sample. Is it common for aluminum to leach from the transmission housing? Transmission still shifts the same, there wasn't any difference that I could tell when the new fluid went in either. I've used Redline for the past 110k+ miles in my Genesis. Thoughts?