What do the experts say about synthetic oil in diesels? Fred Hazzard S/V Fury C&C 44 Portland, Or On May 25, 2015 7:10 AM, "Marek Dziedzic via CnC-List" < cnc-list@cnc-list.com> wrote:
> most of the engine oils that are available today have plenty of > additives that get bad or ineffective after about 6 month in the engine. So > if you are using the engine year round, you might consider changing the oil > twice a year (at least once a year) and if you are using it less (even if > you use it for just a few hours each year), change it annually. For us, > Northern folks, this usually mean changing it in the fall. From what I read > around, there are people who change the oil in the fall and again in the > spring. I don’t, but I can understand the reasoning behind it. > > I hate throwing out the good engine oil after some 25-50 h of running > time, but this is a cheap insurance for the engine. > > Marek > 1994 C270, Legato > Ottawa, on > > *From:* Sam Salter via CnC-List <cnc-list@cnc-list.com> > *Sent:* Sunday, May 24, 2015 9:11 PM > *To:* Jim Watts via CnC-List <cnc-list@cnc-list.com> ; 1 CnC List > <cnc-list@cnc-list.com> > *Cc:* sam.c.sal...@gmail.com > *Subject:* Re: Stus-List Darker Smoke, Harder to Start > > Diesel engine oil is supposed to look black - it's like that a half hour > after you start the engine - by design. > sam :-) > *From: *Jim Watts via CnC-List > *Sent: *Sunday, May 24, 2015 6:48 PM > *To: *1 CnC List > *Reply To: *cnc-list@cnc-list.com > *Cc: *Jim Watts > *Subject: *Re: Stus-List Darker Smoke, Harder to Start > > It's black. > > Jim Watts > Paradigm Shift > C&C 35 Mk III > Victoria, BC > > On 24 May 2015 at 16:59, Sam Salter via CnC-List <cnc-list@cnc-list.com> > wrote: > >> What does bad lubrication oil look like? >> sam :-) >> *From: *S Thomas via CnC-List >> *Sent: *Sunday, May 24, 2015 5:01 PM >> *To: *cnc-list@cnc-list.com >> *Reply To: *cnc-list@cnc-list.com >> *Cc: *S Thomas >> *Subject: *Re: Stus-List Darker Smoke, Harder to Start >> >> If it is cranking at the usual speed, then the compression might be off >> a bit in one of the cylinders. This can happen if one of the piston rings >> has got stuck over the winter. I would warm up the engine good and hot and >> then take for a run. Run it fairly hard for a couple of hours so long as >> everything appears to be ok. That should get the carbon out, if there is >> any, and it might loosen up a seized ring. >> >> Black smoke is a sign of a rich mix, but it means little if you have just >> started the engine after a period of cranking it for a while. >> >> If you did not change the oil last fall, then now is the time to change >> it. I don't know why, but I have found that lubricating oil sitting for a >> while in diesel engines is more likely to go bad than in gasoline engines. >> Maybe it is climate dependent, but that has been my experience limited >> though that may be. >> >> Steve Thomas >> C&C27 MKIII >> Port Stanley, ON >> >> ----- Original Message ----- >> *From:* Edd Schillay via CnC-List <cnc-list@cnc-list.com> >> *To:* cnc-list Cnc-List <cnc-list@cnc-list.com> >> *Cc:* Edd Schillay <e...@schillay.com> >> *Sent:* Sunday, May 24, 2015 18:07 >> *Subject:* Stus-List Darker Smoke, Harder to Start >> >> Listers, >> >> I find I'm having a harder time getting the engine started and seeing a >> little bit of darker smoke when it does turn over, as compared to last >> season. >> >> Once running, everything seems fine -- temperature, water flow, >> revolutions, etc. >> >> Any ideas or suggestions? >> >> Usually, my solution to engine problems is "get the jib out." >> >> >> All the best, >> >> Edd >> >> ------------------------------- >> Edd M. Schillay >> Starship Enterprise >> NCC-1701-B >> C&C 37+ | City Island, NY >> www.StarshipSailing.com >> ------------------------------- >> 914.332.4400 | Office >> 914.774.9767 | Mobile >> ------------------------------- >> Sent via iPhone 6 >> iPhone. iTypos. iApologize >> ------------------------------ >> _______________________________________________ >> >> Email address: >> CnC-List@cnc-list.com >> To change your list preferences, including unsubscribing -- go to the >> bottom of page at: >> http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com >> >> >> >> _______________________________________________ >> >> Email address: >> CnC-List@cnc-list.com >> To change your list preferences, including unsubscribing -- go to the >> bottom of page at: >> http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com >> >> >> > > ------------------------------ > _______________________________________________ > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go to the > bottom of page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > > _______________________________________________ > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go to the > bottom of page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > >
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