A couple of mechanics have told me this as well. If an older car has been
using non-synthetic, then never change to synthetic since it might start leaks
that didn't exist before.That said, most of our diesels never get the hours on
the engine that an auto/truck get so it might be a moot point.RonWild CheriC&C
30-1STL
From: Marek Dziedzic via CnC-List <cnc-list@cnc-list.com>
To: "cnc-list@cnc-list.com" <cnc-list@cnc-list.com>
Cc: Marek Dziedzic <dziedzi...@hotmail.com>
Sent: Sunday, July 23, 2017 6:10 PM
Subject: Re: Stus-List synthetic oil
Mike,
There are some reports that synthetic oil may dissolve some of the residues
left on different parts, which may lead to sudden increase of the oil usage. Of
course, this applies to older engines. The general rule of thumb is that if you
used non-synthetic oils in the past (and did it for years) you may want to stay
with the same kind. If you used synthetics, there should be no issue switching
to non-synthetic.
My personal experience is limited to a single car in the past, where I changed
from normal to synthetic (the car was driven hard) and I ended up with an
engine that burned about 1-1.5 l (1-2 qt.) of oil for 1000 km.
I don't believe that you could use oil that is "too good" for the engine. As
long as it is the same grade, it should work fine.
In your case I would monitor how much oil is staying in the engine (and how
much you burn).
Good luck
Marek
1994 C270 "Legato"
Ottawa, ON
-----Original Message-----
From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Hoyt, Mike
via CnC-List
Sent: Sunday, July 23, 2017 11:45
To: cnc-list@cnc-list.com
Cc: Hoyt, Mike <mike.h...@impgroup.com>
Subject: Stus-List synthetic oil
I had my brother pick up 15w40 for me last week. Changed oil today and when old
oil drained realized he bought synthetic 15w40. Have outing today and no time
to get regular oil.
Plan to drain and change later this week to non synthetic
Is this an issue?
Yanmar 3gm30f
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_______________________________________________
This list is supported by the generous donations of our members. If you wish to
make a contribution to offset our costs, please go to:
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All Contributions are greatly appreciated!
_______________________________________________
This list is supported by the generous donations of our members. If you wish to
make a contribution to offset our costs, please go to:
https://www.paypal.me/stumurray
All Contributions are greatly appreciated!
