I use AMSOIL in my 89 Westy and change the filter at 6 months, and the oil
and filter at 12 months following initial installation.  It is good to
25,000 miles per year but I don't drive it that much so I go by time.  I run
close to 25,000 miles per year in my 92 Jetta 1.8L but I use the AMSOIL
filters which are changed at 6 months or 12,500 miles, and then change the
oil and filter at 12 months or 25,000 miles.  I have 121,000 on it now.  My
91 Jetta ECO diesel gets the same treatment and it has 151,000 miles on it.
It passed the Ohio E-Check with 0% opacity (no soot).  Just starting to get
broke in good! :))
TEMiller
----- Original Message -----
From: "Shawn Wright" <swright@ZUIKO.SLS.BC.CA>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Wednesday, June 01, 2005 8:13 PM
Subject: Re: Another Synthetic Oil Question

> On 1 Jun 2005 at 19:57, Loren Busch <starwagen@GMAIL.COM> wrote:
>
>> I see everyone referring to longer change intervals on the oil, but
>> how about change interval on the filter?  I recall when the synth oils
>> first came out that some sources suggested still changing filters on
>> the same interval as dino oil.  Any comments?  What have the synth oil
>> users been doing?
>
> I have not gone for extended drain intervals (yet), but a friend who has
> is changing
> his filter at the stock intervals, and the oil at 24k kms or 1 year, using
> Amsoil. Engine
> still runs great and uses no oil with 380k kms, although it's not a VW.
> (Suzuki 1.3 16
> valve). I currently don't drive more than 10k kms per year on the Westy,
> so I just
> change both oil and filter once per year.
>
>
>
> Shawn Wright
> http://zuiko.sls.bc.ca/~swright
> '85 Jetta D
> '88 Westy 2.1L, soon to be 1.6TD 5 speed
> (see progress at http://members.shaw.ca/vwdiesels)
> '82 Diesel Westy
>