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Diesel oil
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ac.d17iv View Drop Down
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Joined: 29 Sep 2009
Location: SWIA
Points: 103 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ac.d17iv Quote  Post ReplyReply Direct Link To This Post Topic: Diesel oil
    Posted: 26 Feb 2011 at 8:37am
I have a 185 now and I'm new to diesels engines.  My manual says to use straight 30WT for oil, but it seems like a lot use 15W40.  This won't run much in the winter and will mainly be used for show.  What does everyone else use? 
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Denis in MI View Drop Down
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Joined: 15 Sep 2009
Location: Norvell, MI
Points: 832 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Denis in MI Quote  Post ReplyReply Direct Link To This Post Posted: 26 Feb 2011 at 8:44am
15w 40 is my prefered oil of choice for all of my tractors gas or diesel, working or show, winter or summer.  I am a fan of it and haven't had any problems that I think it caused yet, I would have no fear using 15w40 in that tractor, it should give you more wear protection and easier cranking, but it is my opinion and I am sure some one else will have one too.
 
for what it is worth,
Denis
1938 B, 1945 B, 1941 IB, 1949 C, 2 1938 WCs, 3 1950 WDs, 1951 WD, 2 1955 WD45, 1957 D-14
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Gary in da UP View Drop Down
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Joined: 13 Sep 2009
Location: EUP of Mi.
Points: 1885 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Gary in da UP Quote  Post ReplyReply Direct Link To This Post Posted: 26 Feb 2011 at 9:00am
I swtched from Mobil Delvac 15-40 to 10-30 Delvac long ago for my Kubota and my powerstroke. Much easier cold weather starts. But you may not see the below zero temps that I do. I use it year round with no problems. 15-40 might be a better choice for a very hard working truck or tractor in 90+ temps, which we rarely see here for more than a few weeks a year.
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ironac View Drop Down
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Joined: 06 Jan 2011
Location: Plainfield IA
Points: 283 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ironac Quote  Post ReplyReply Direct Link To This Post Posted: 26 Feb 2011 at 10:58pm
rotella 15-40 is a good choice two. also a good option if you just overhauled the engine. 
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farmer0_1 View Drop Down
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Joined: 06 Dec 2009
Location: cornelius or
Points: 592 		Post Options Post Options   Thanks (0) Thanks(0)   Quote farmer0_1 Quote  Post ReplyReply Direct Link To This Post Posted: 27 Feb 2011 at 12:34am
  we always ran 30 wt in our mild climate delo 400 in all our diesels.  no issues kept every one of them for years running great.
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