[Slipperyb]

I've done some searching, but can't find what I am looking for, and that is:

If you're under CPO warranty and:

1) You add aftermarket parts (non-oem) does it void your warranty on only that part, or does it void your entire warranty?

2) Is the FSM required to maintain your CPO warranty? i.e.; if a given mileage FSM requires an oil change and multipoint inspection/fluid level check all around, and you ask the dealer to do an oil change and multipoint inspection only, and not the specific _______ mileage FSM, because the latter is several hundred bucks more, does this void the CPO warranty

 

[Veefifty T5AWD]

I think it depends on what needs to be covered under warranty. I did all my own oil changes and still had things covered under CPO. Notably, the PCV was covered, and they didn't ask if they did the oil changes or not.