The only safest answer is to follow the OEM recommendations. IF Rotella T is in the OEM viscosity range and meets the recommended SAE specs then yes you can use it. When changing the oil, it makes little sense to not change the filter and yes the OEM typically recommends changing the oil at the end of the season. There is no "harm" to the engine in changing the oil or filter or both more often than needed or recommended
Josh On Tue, Sep 3, 2019, 9:28 AM Richard Bush via CnC-List < cnc-list@cnc-list.com> wrote: > Ok; respectfully.... you guys now have me totally confused...what one > swears by, then other would "never" do....we mere mortals, (as in not > mechanics, scientists, or otherwise experts in the field), need to know > what we can reliably do for our good old Yanmars... > so, can I use Rotella for diesel, (30 wt per C&C manual) or not...and even > if not required, does it hurt to change the filter every year whether need > or not...? > > Many thanks and please know that I, for one, love to see and partake in > this kind of discussion, I just need to know what to do... > > Richard > s/v Bushmark4: 1985 C&C 37 CB; Ohio River, Miel 584.4 > > > Richard N. Bush > 2950 Breckenridge Lane, Suite Nine > Louisville, Kentucky 40220-1462 > 502-584-7255 > > > -----Original Message----- > From: Andrew Burton via CnC-List <cnc-list@cnc-list.com> > To: cnc-list <cnc-list@cnc-list.com> > Cc: Andrew Burton <a.burton.sai...@gmail.com> > Sent: Mon, Sep 2, 2019 10:12 am > Subject: Re: Stus-List engine oil > > For what it's worth, I use non synthetics oils and I wouldn’t think of not > change the filter with each oil change. When I installed the new engine in > my 40 two years ago I asked the mechanic about using synthetic oil and was > told absolutely not! For the reasons already explained here. > > Andy > > Andrew Burton > 139 Tuckerman Ave > Middletown, RI > USA 02842 > > www.burtonsailing.com > http://sites.google.com/site/andrewburtonyachtservices/ > +401 965-5260 > > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > >
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