Oil Dilution + Strong Gas Smell + Soot on Tailpipe + Poor Mileage

[Nodak]

per reddit posts ... "Critical Range - 3.0% and higher. Noticeably degrades oil viscosity, risks accelerated mechanical wear, and usually prompts a used oil analysis (UOA) to trace root causes. Frequent short trips prevent the oil from getting hot enough to boil off lighter fuel infractions"

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[Nodak]

also typical break in on toyota engines usually doesnt happen until after 10k miles for mpg to go up. mine hovered around 18-19 mpg until i broke around 8-9k miles and now its sits around 20-21 mpg for my daily driving.

also toyota has a built in restrictor for i think for downshifting past 2/3 rd gear manually until after 500 miles (think they dont want you breaking 4k rpm downshifting)

found that out accidentally when i tried it a few times when using the gear selector manually.