| Author |
Message |
larry currier (Larryc)
Registered Member
Username: Larryc
Post Number: 145
Registered: 2-2007
Posted From: 64.12.116.203
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, July 01, 2007 - 10:52 pm: | |
I've used Shell Rotella Synthetic for a few years now in the Cummins 4 strokes. Everything I read about the makeup of this oil looks like the old 2 stroke spec is a close fit. This oil goes 50 hrs a week for 18 months and still comes back OK at analysis. My engines look very clean on the inside.
An outsider came in the shop a couple weeks ago and I had the valve covers off a 400. He is a mechanic for another company and commented "you must change your oil alot to keep your engines so clean inside!" That engine has been 13 months and had 1 gallon added. I still think he thinks I lied about that, but its true.
No one is going to spend the money to certify this oil for an old spec, but looking at the makeup from a untrained eye this stuff looks real good.
CF2 is hard to get and I was just charged $12 a gallon at the truckstop for regular oil. This synthetic is available at Walmart for $14 a gallon and its always on the shelf. Has anyone who understands motor oil taken a good look at the possibility of this being a great 2 stroke oil? |
Ricky D. West (Gg04)
Registered Member
Username: Gg04
Post Number: 7
Registered: 11-2006
Posted From: 74.241.193.104
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, July 02, 2007 - 11:18 am: | |
Royal Purple is the only manufacturer I know of that offers a single grade synthetic oil that meets CF2.. Use it in my trans but Johns and a couple of others around here have used it in thier engines for years....gg |
Ed Jewett (Kristinsgrandpa)
Registered Member
Username: Kristinsgrandpa
Post Number: 324
Registered: 2-2003
Posted From: 64.24.209.93
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, July 02, 2007 - 11:37 am: | |
Try this list for oils and ratings.
http://eolcs.api.org/FindBrandByServiceCategory.asp?ServiceCategory=CF-2
Or the same list in different categories.
http://eolcs.api.org/default.asp
Ed |
larry currier (Larryc)
Registered Member
Username: Larryc
Post Number: 146
Registered: 2-2007
Posted From: 64.12.116.203
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, July 03, 2007 - 12:24 am: | |
Ed thats interesting, I was not aware that any multi grades had ever met the CF2 spec. Guess the syn is to new, wasn't on the list. |
John MC9 (John_mc9)
Registered Member
Username: John_mc9
Post Number: 428
Registered: 7-2006
Posted From: 66.217.107.119
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, July 03, 2007 - 8:13 pm: | |
The CF2 designator is the easy part.... The ash content is
the more difficult to meet (to DD specs), and none (on those
lists) appear to meet the DD specs for the old 2 bangers.
Delo® 100 40 wt & Rotella 40T® |
Dan West (Utahclaimjumper)
Registered Member
Username: Utahclaimjumper
Post Number: 51
Registered: 1-2005
Posted From: 208.66.39.51
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, July 04, 2007 - 7:56 pm: | |
The way I understand it the syns dont do well with the two strokes at the rod- crank bearing point. Two strokes fire every stroke so there is no "rest" period at the rod bearing between strokes, HD 40W is seriously needed at this point, I wont even go into piston scuffing.>>>Dan |
guy bouchard (Guy_bouchard)
Registered Member
Username: Guy_bouchard
Post Number: 11
Registered: 11-2004
Posted From: 161.184.192.122
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, July 05, 2007 - 12:25 am: | |
The main reason that 2-cycles need a single weight oil is because of the heat that the oil has to get rid of. In a Detroit, the piston cooling is done mostly by oil. The normal operating temperature of the crankcase oil is between 260 and 290; if you happen to get into a long pull or some other situation where excess heat is generated, multi-grade oil can't take that kind of heat. As far as the sulfated ash content, when the fuel reduced the sulphur content, the oil companies lowered the ash content so that now a series 3 oil will fall into the spec range for ash content.
Guy 4905 |
John MC9 (John_mc9)
Registered Member
Username: John_mc9
Post Number: 433
Registered: 7-2006
Posted From: 66.217.106.193
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, July 05, 2007 - 12:52 am: | |
Re:
"when the fuel reduced the sulphur content, the oil companies
lowered the ash content so that now a series 3 oil will fall
into the spec range for ash content. "
Interesting, Guy! Thanks for the "heads up" !! |
R.C.Bishop (Chuckllb)
Registered Member
Username: Chuckllb
Post Number: 166
Registered: 7-2006
Posted From: 4.240.214.217
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, July 05, 2007 - 8:56 pm: | |
Good post, Guy...and JTNG. Thanx.
RCB |
Paul Lawry (Dreamscape)
Registered Member
Username: Dreamscape
Post Number: 43
Registered: 5-2007
Posted From: 71.16.224.115
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, July 05, 2007 - 9:53 pm: | |
I read so many posts on oil for our Detroits. I just stick with whats recommended, until otherwise. It is all good information, don't get me wrong. Creature of habit I guess. |
guy bouchard (Guy_bouchard)
Registered Member
Username: Guy_bouchard
Post Number: 12
Registered: 11-2004
Posted From: 161.184.176.204
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, July 06, 2007 - 1:03 am: | |
Actually, Dreamscape, you're quite right. The Detroit manual is simple and straightforward. There is one choice (actually 2) 30 weight when it's real cold and 40 weight the rest of the time. The oil of choice for us in Canada is Esso HD 40. Hd oil has an ash content of .8 and falls in the range that detroit recomends. The limit is 1.0, and that now lets in a few other oils. My post was just to let some of the people who may have limited access to a variety of oils a bit more choice.
Guy 4905 |
JC Alacoque (Jc_alacoque)
Registered Member
Username: Jc_alacoque
Post Number: 37
Registered: 7-2006
Posted From: 74.127.203.95
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, July 06, 2007 - 10:20 am: | |
I've been using Petrocan's Dieseltonic 40w, specifically made for Detroit 2 strokes, available at bulk plants across Canada. |
JC Alacoque (Jc_alacoque)
Registered Member
Username: Jc_alacoque
Post Number: 38
Registered: 7-2006
Posted From: 74.127.203.95
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, July 06, 2007 - 2:09 pm: | |
Some info on Dieseltonic |
JC Alacoque (Jc_alacoque)
Registered Member
Username: Jc_alacoque
Post Number: 39
Registered: 7-2006
Posted From: 74.127.203.95
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, July 06, 2007 - 2:27 pm: | |
Well, the file is too big to upload.
Dieseltonic comes in 40w only because DD recommends 40w only in their 2strokes. It is a CF2 with an ash content of 0.7%. Our bulk plant stocks it here because there are still a lot of 2 stroke DDs in the forest industry and others. It can be ordered too. |