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 Burton139 Tuckerman AveMiddletown, RI USA 02842 www.burtonsailing.comhttp://sites.google.com/site/andrewburtonyachtservices/+401 965-5260
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