Comment by leakycap
17 hours ago
I don't think it is entirely mental - I had thought the same, but I recently had a very cheap rental car for months, so long they called it back to the shop for an oil change and then gave it back to me... that car drove SO much better after the oil change, the engine was quieter and smoother and the difference was obvious because the car had no vibration or sound insulation.
All I can think is maybe they changed a clogged air filter at the same time. Otherwise it has to be placebo.
Why would your go-to explanation be an air filter service that no one in this tangent has mentioned? This seems counterintuitive, but then you also say the only other option is placebo so I'm not sure I follow from the limited line of thinking explained here?