Hey so recently I went to the mechanic and I did have a sputtering problem with my car, and I filled out a sheet explaining the problem I did sign a sheet saying they could do work on it but i never agreed to do an oil change, can they charge me for that?
The variable valve timing system (VVT) on an engine operates using oil pressure. If the oil is oil or has any sludge, that can cause the VVT system to not run properly and set a trouble code. Many times, you can fix that by cleaning the filter screens on the mechanisms and changing the oil. In fact, if the shop suspects the oil is the cause, changing it is the recommended procedure.
So ASK the shop if that’s whey they changed the oil before you go off the deep end and start accusing them of screwing you.
^^^^^^^^^^^^^^^^^^^^^^^This is the correct answer…