Simple green will also etch Al. If not rinsed off well enough. Unless the formula has been updated.
https://www.doi.gov/sites/doi.gov/files/migrated/aviation/safety/upload/SA_2000-01.pdf
Same issue, but on drivers side. I blame the use environmental friendly paints. The 79 T bird had cracked rear glass that was held in place due to the defrost lines (slight fish story).
Oil change and tire rotation. Had to break out the old KD filter wrench.
Found out the ranger had zero zerks.
6.5 qts 5w30 Pennzoil and a M1-209A filter.
8600 on this one with 11% life left.
My did it with a 80s (maybe 84) era Econoline think it was inline 6. We used a ball valve to control speed with a 100lb propane tank strapped behind the drivers seat.
Looking back was not the safest thing to do.