it wouldn't hurt to get a blackstone oil kit sent off to check for any contamination or excess metals in the oil.I am very concerned about my P5 right now.
I started it this morning and was greeted by what seemed to be a definite knock, for about 20 seconds and then lessening for the next 2-3 minutes as the car warmed up.
It was 30F out, the oil is at the full line on the dipstick, it's been about 2k miles since I changed it last with brand name 5w30 and it looks just slightly brown. Oh and just ticked over 170k on the odometer. It does not make any noise once warm or under acceleration, but now that I think about it, the knocking at startup started more recently and has gotten worse.
And now I am left wondering...is this the end for my dear little Protege5?
Oh also, not sure if it matters but I do know my knock sensor needs replacing. The goo is oozing out.