The oil turns black, most likely, from the deposits that it washes away (as opposed to getting burned).
I use 15W-40 (in a Perkins, mind you) Marek Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10 ________________________________ From: CnC-List <cnc-list-boun...@cnc-list.com> on behalf of CHARLES SCHEAFFER via CnC-List <cnc-list@cnc-list.com> Sent: Friday, August 30, 2019 4:55:22 PM To: cnc-list@cnc-list.com <cnc-list@cnc-list.com> Cc: CHARLES SCHEAFFER <cscheaf...@comcast.net> Subject: Re: Stus-List engine oil Rotella oil for diesels is what I use. The owner's manual will specify a certain type and I'd use that. My engine is from 1989 and not a lot of hours use, but the oil turns black after I run the engine. My diesel mechanic says that is not a problem. I changed the oil twice many years ago and saw no improvement, so I just accept that. I only use about 10 gallons of diesel fuel each year and change the oil in the Fall after a long run and the engine is hot. I pull the old oil from the bottom of the pan and change the filter each time. Chuck S On August 30, 2019 at 4:24 PM Bruno Lachance via CnC-List <cnc-list@cnc-list.com> wrote: Wade, are you sure the 30W is not just for the transmission? my 2GM20F manual says 15W-40 for the engine and 30W for the transmission. Maybe it's different for your 2GM. Bruno Lachance Bécassine, 33-2 New-Richmond, Qc ________________________________ De : CnC-List <cnc-list-boun...@cnc-list.com> de la part de Wade Glew via CnC-List <cnc-list@cnc-list.com> Envoyé : 30 août 2019 16:04 À : cnc-list@cnc-list.com <cnc-list@cnc-list.com> Cc : Wade Glew <wadeg...@gmail.com> Objet : Re: Stus-List engine oil Thanks. Can I use a multi grade (say 10W-40) instead of the 30W recommended in the engine manual? Operating temp range here is 10-30 C (50-90 F) Wade On Fri, Aug 30, 2019, 14:37 John Irvin via CnC-List, < cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> wrote: Would not hesitate. Sent from my iPhone > On Aug 30, 2019, at 1:47 PM, Wade Glew via CnC-List < > cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> wrote: > > Can I ask if I can use Shell Rotella Synthetic diesel oil in my 1986 Yanmar > 2GM? > > Wade > Oh Boy 33 MK II > _______________________________________________ > > 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
