The sad truth of this is , I usually change the oil myself but let the dealership do it months ago so I could develop a rapport with the service department .
I tried changing it myself once again a couple of days ago but found that they had torqued the drain plug to a superhuman spec that I couldn’t untorque, so I sent it into the dealership once again lol
I'd guarantee they used an impact gun on the drain plug.
For dealership mechanics, speed is the ONLY thing that matters. They get paid for a given amount of hours to do a certain task. Say an oil change pays 1 hour, (its doesn't , just using 1 hour for easy math) then they get paid one hour of their labor rate to do that oil change.
If they rush through it, do a crappy job, but manage to get 3 oil changes done in 1 hour, then guess what, they get paid 3 hours worth of pay for that 1 hour worked. So speed in KING, and the ONLY thing that matters because that's money to them.
Impacts guns are quick, so they use them for literally everything in the name of speed.
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