1.8T Jetta oil burning an insane amount of oil, no leaks, oil cap is a vaccum

Hi, my name is Devin. I am an auto repair expert with the Car Genius team here at RepairPal. So sorry to hear you're having trouble with your vehicle. Diagnosing the cause of your engine burning excessive oil can be tricky. Given that you've already replaced the spark plugs and PCV valve without any change, we might need to dig a bit deeper. Possible causes include worn valve seals or turbocharger issues. Carbon buildup on piston rings and ring lands can also cause them to not seal, allowing oil into the combustion chamber. It might be worth having a professional technician diagnose thoroughly because these test procedures can get quite involved. If you need more advice, have any other questions about your vehicle, or would like to get connected to a RepairPal Certified shop near you, we have you covered. Give us a call at 877-913-1554, and we will happily help you out!