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Re: Synthetic vs Organic

Mobil currently offers the following fully synthetic oils (at least in

Mobil 1 0W40	- VW 500.00/505.00 approval
Mobil 1 5W50	- VW 501.01/505.00 approval
Mobil 1 5W40	- VW 500.00/505.00 approval 

Prices for the three (list) here are USD 14.00/12.00/12.00 per litre
(approximately) here.  Ouch!

The VW 500.00 approved oils are more expensive, but for our climate they
offer the best year-round protection, good cold-starting capabilities, and
low frictional losses.  One must remember that if using VW 500.00 approved
oil on Turbodiesels, the oil should also have the VW 505.00 (more
traditional multi-grade) approval.

This is a can of worms, I don't want to open it much further, but we use
only Mobil 1 0W40 on our demos/company cars.  Most of customers seem to
agree.  We do not sell the any oils that do not have the VW approval
required for the particular application.  Find an oil with the VW
500.00/505.00 approval and you should be safe.

Jouko Haapanen
Automarkku Oy Audi-VW
Pori, Finland

> From: jgraham1@erols.com
> To: Mark&Michelle Sousa <mps@netpci.com>
> Cc: quattro@coimbra.ans.net
> Subject: Re: Synthetic vs Organic
> Date: 30. kesäkuuta 1997 07:11
> Mark&Michelle Sousa wrote:
> > Recently I've made two oil changes Using Mobil 10/40 synthetic
> I hope you mean 10W/30. There is no Mobil 10W/40 synthetic.
> > motor oil, scince then I've noticed an engine clattering sound when I
> > first start the car upand let it idle, it eventually goes away when
> > the
> > engine
> > warms up, but you can still faintly hear the clatter when idling, the
> > problem
> > is I'm not sure if this was occuring when I was using regular oil,
> > should
> > I go back to regular or stay synthetic? Is this clatter normal for the
> >
> > 5cyl?
> > or do I have a serious engine problem?
> >
> > Mark
>   John.
> 1990 QC