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oil type D15-17 tractor
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EDD View Drop Down
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Joined: 11 Jan 2015
Location: Ohio
Points: 46 		Post Options Post Options   Thanks (0) Thanks(0)   Quote EDD Quote  Post ReplyReply Direct Link To This Post Topic: oil type D15-17 tractor
    Posted: 13 Sep 2019 at 12:21pm
Was wondering what oil type to use on my D15 & D17 gas tractors? I think the owners manual says to use straight 30 weight, but assume todays multi viscosity's are much better?  Using 15W40 for my diesels. Will it harm the D15 & 17 to use diesel oils? Not sure why it would, but have heard thru the grapevine not to use it?
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DougS View Drop Down
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Joined: 03 Nov 2011
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Points: 2490 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DougS Quote  Post ReplyReply Direct Link To This Post Posted: 13 Sep 2019 at 12:40pm
It won't hurt anything. Diesel motor oil has a different additive package to keep the particles in suspension, but otherwise it will be far superior to anything they had in 1958. Even todays 10W-30 will have far more film strength than the straight 30 of sixty years ago.


Edited by DougS - 13 Sep 2019 at 12:41pm
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Joined: 08 Jul 2013
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Points: 568 		Post Options Post Options   Thanks (0) Thanks(0)   Quote gerkendave Quote  Post ReplyReply Direct Link To This Post Posted: 14 Sep 2019 at 10:36am
I'm with Doug on this. I use the same 15-40 diesel oil in my 190xt, d17 IV gas and my d14. Also have been using it on lawn mowers pressure washers etc as well. Buy it in 5 gallon buckets to save a little money
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Points: 2490 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DougS Quote  Post ReplyReply Direct Link To This Post Posted: 14 Sep 2019 at 1:31pm
Well I do use 10W-30 in my lawn mower. That's what Honda specifies. 5W-30 in my snow blower. I don't know why they'd want something as heavy as 30 in a machine that runs in temperatures anywhere from 20F to -20F. Those are air cooled engines and I use synthetic. Walmart Mobil 1 isn't that expensive, especially when you consider that those engines get serviced once a year.


Edited by DougS - 14 Sep 2019 at 1:32pm
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