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> From: "Gary G. Erickson" <firstname.lastname@example.org>
> Glenn Kaufman wrote:
> > I just got my Coupe back from the dealer. They did an oil change and the
> > lifters are noisier than they ever were. It took a long time for that rap
> > tap tap to disappear. The Audi rep says that he noticed it, and therefore
> > he had added a few drops of Bardol (?) oil and said that it should help. In
> > the past, I've noticed the noisy lifters for about 30 seconds upon start-up
> > but never like this. The oil they put in was Valvoline 20W50. For the past
> > 30K miles, I've used the Valvoline semi-synthetic ranging from 20W50 to 10W30.
Glen, this is the latest in a long story. You WERE running better
oil than you are now. SEMI-synthetic oil is generally part
synthetic, part petro-oil. You can silence those lifters by running
a REAL synthetic oil. Your choice.
Note: I'm not saying Valvoline 20-50 is bad oil. It's good oil. But
Glen's post is more evidence that it's not AS good as synthetic; not
even as good as semi-synthetic.
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