Even More Questions

[Phil Payne]

> >Recently, after changing the oil and filter,  the car began to
> >exhibit a rather loud engine knock at start-up

> If your knocking could also be described as a "ticking" then you are
getting
> lifter noise.  I would venture to guess that you changed your oil to
> conventional oil (instead of synthetic, i.e..Mobil 1).

I'd guess he's used an oil filter without an anti-drainback valve.

--
  Phil Payne
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