thanks Josh I notice Sea Hawk is a 1989 boat. My boat is a 1986 with Yanmar 2GM20F so we are close in years. No issues with synthetic in older engines? Also, do you put in any oil additives routinely?
thanks, Wade Oh Boy C&C 33 MK II Lake of the Woods On Thu, Nov 22, 2018 at 5:30 PM Josh Muckley via CnC-List < cnc-list@cnc-list.com> wrote: > Yes, fully synthetic. > > Evidently in the early 70's Amsoil started developing and marketing > synthetic oil. Mobile came out and tried to compete but made an inferior > product. Unfortunately the public already knew and used Mobile products so > when the Mobile synthetic didn't deliver on their promises, it made a bad > name for synthetics as a whole. As the story goes, Amsoil came to mobile > and proposed to show them how to make a synthetic so that the technology > would be embraced. > > Amsoil has been pioneering ultra efficient oils and extended interval oil > changes for almost 50 years. Under the older engine technology they would > simply have you change the filter and top up the sump, no change until > 25,000 miles. As the engine and filter tech improved they have now shifted > slightly to an entirely 25k run on the same oil and filter depending on the > application. In addition to their extended oil change interval they also > promote oil sample analysis. You can detect all manner of internal wear > and deterioration of the oil and the engine. > > Josh Muckley > S/V Sea Hawk > 1989 C&C 37+ > Solomons, MD > > On Thu, Nov 22, 2018, 6:11 PM Wade Glew via CnC-List < > cnc-list@cnc-list.com wrote: > >> is this a synthetic oil Josh? >> >> Wade >> Oh Boy C&C 33MKII >> Lake of the Woods >> >> On Wed, Nov 21, 2018 at 4:16 PM Josh Muckley via CnC-List < >> cnc-list@cnc-list.com> wrote: >> >>> I use Amsoil products for all my engines. The boat gets 15w40 heavy >>> duty/marine diesel oil. It had a high TBN of 12. As the acids accumulate >>> in the oil the TBN will diminish towards 0. I send oil samples for >>> analysis. Typically in high compression engines which accumulate a lot of >>> soot/exhaust in the oil, the TBN is the limiting factor as to when the oil >>> is exhausted. >>> >>> It's cool to trend oil properties over time and be able to understand >>> the changes and what they mean about engine health. Kinda like a blood >>> test for your engine. >>> >>> Josh Muckley >>> S/V Sea Hawk >>> 1989 C&C 37+ >>> Solomons, MD >>> >>> On Wed, Nov 21, 2018, 3:31 PM Fred Hazzard via CnC-List < >>> cnc-list@cnc-list.com wrote: >>> >>>> I have been using Delo 30 in my Yanmar. >>>> What you use? >>>> >>>> Fred Hazzard >>>> S/V Fury >>>> C&C 44 >>>> Portland Or >>>> _______________________________________________ >>>> >>>> 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 >>>> >>>> _______________________________________________ >>> >>> 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 >>> >>> _______________________________________________ >> >> 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 >> >> _______________________________________________ > > 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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