I have heard of changing the oil, but substitute one of the quarts of oil
with ATF (Automatic Transmission Fluid. Supposedly the ATF has a high
detergent concentration to help knock out the sludge from auto tranny valve
bodies.

Run the engine for a day or two with that mixture, then change the oil and
filter again.

TomC
tcarrington@relitech.com
http://www.relitech.com/tomc
http://volksweb.relitech.com
85 Vanagon Crew Cab
82 Westy diesel=>gas conversion
65 Notchback

>
> Volks,
>
> After changing from winter to summer tires on me moms 94 VW Vento, I
> also pulled the oil dip stick, to check the level. It was
> plenty of oil,
> but the oil was more like black syrup. How do I wash the
> engine, on the
> inside? I can think of one way to do it, buy 20 liters of cheap oil, a
> couple of filters and change oil once a week 4 times, and fill up with
> good oil. Does the list think this is a good way to do it, or should I
> do it in any other way?
>