To clarify, I have spent many years in one shop or another, most of them on a creeper…

Jim

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> On Oct 9, 2021, at 3:38 PM, OlRivrRat <OlRivrRat@comcast.net> wrote:
> 
>     JF,, Why were You sitting in a shop for many years ~~
> 
>> On 8 Oct , 2021, at 6:06 PM, Jim. Felder <jim.felder@GMAIL.COM> wrote:
>> 
>> I don't know. i've opened up engines after sitting in a shop for many many
>> years and have never seen water (or any other) contamination at least that
>> was visible. My Jettas were "never" (my quotes because no VW ever held oil
>> for that long)  supposed to undergo transmission oil or transmission fluid
>> changes.
>> 
>> The reason I would change oil in an engine is if I did not know what I was
>> working with, no matter what the circumstances.
>> 
>> Does anyone know for sure about oil being hygroscopic? About it turning
>> acidic? And I am talking about for certain, as in information from a
>> chemist.
>> 
>> Jim
>> 
>>> On Fri, Oct 8, 2021 at 11:31 AM Dan N <dn92610@gmail.com> wrote:
>>> 
>>> I agree.. some people change the oil twice... once before storage and once
>>> after storage... Car collectors do it on a strict time schedule because of
>>> the contamination factors... storage or not driving it or not.
>>> 
>>>> On Fri, Oct 8, 2021 at 9:22 AM Cary Chiang <ccchiang1@gmail.com> wrote:
>>> 
>>>> I've read a few articles about how professionals and car collectors
>>>> prepare vehicles for long term storage, and their rule was to always
>>>> replace fuel and oil with fresh/clean fluids before storage. I believe
>>> they
>>>> stated that the contaminants in used oil, combined with the moisture from
>>>> combustion and from the humidity that Dan mentioned, causes the oil to
>>>> become slightly acidic.  No need to leave that sitting in your engine all
>>>> winter!
>>>> Cary
>>>> 
>>>> On Fri, Oct 8, 2021, 10:30 AM Dan N <dn92610@gmail.com> wrote:
>>>> 
>>>>> I'd think wait till the Spring and change oil before you resume the
>>>>> driving. Fresh oil sitting in the engine during the winter months will
>>>>> collect moisture due to humidity.
>>>>> 
>>>>> On Fri, Oct 8, 2021 at 7:22 AM Jack R <jack007@comcast.net> wrote:
>>>>> 
>>>>>> Any advise on timing of an oil change before or after winter storage?
>>>>>> 
>>>>>> Does it make any difference as to when I do my oil change on my 2.1L
>>>>> Westy?
>>>>>> I'm due for one based on time/mileage, but wondered if I should wait
>>>>> until
>>>>>> Spring when I start driving again or should it be completed before I
>>>>> store
>>>>>> it in my insulated garage for the winter?
>>>>>> 
>>>>>> Thanks!!
>>>>>> 
>>>>>> Jack R.
>>>>>> 84 Westy, with 2.1L from 91 syncro
>>>>>> N. of Detroit
>>>>>> 
>>>>> 
>>>> 
>>> 
>