The other day I got a 2000 vr6 Jetta there is a noise in the motor it's like a tapping noise /knock to me it sounds like a vavle tap the car still runs storng and hard a shop told me it was button half of my motor another shop told me a vavle tap I did a oil change hoping the noise would stop I used 5w-30 but the noise is still there on a scale 1-10 the sound is like a 5 not so loud but loud enough I need to know should I keep driving the car or will it blow I drove it over 500 miles with it making this noise and it hasn't gotting worse ND my car still drives perfect I just have that stupid no