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todd blair 
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Joined: 17 Sep 2016
Location: Southern il
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 Topic: D-17 engine oil
Posted: 12 Oct 2016 at 8:10pm |
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I have a series 1 d-17 allis, I don't know what kind of engine oil the previous owner put in, what type of oil is recommend.
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Hubert (Ga)engine7
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Joined: 12 Sep 2009
Location: Jackson Cnty,GA
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Posted: 12 Oct 2016 at 8:17pm |
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A lot depends on what grade of oil has been used in it previously. If the engine has a lot of sludge build up from using non detergent oil and you change to a high detergent you will need to change it and the filter again after a few hours because of sludge breaking loose and very likely do this several times. I would use a good 10w30 in it with cold weather just around the corner.
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Just an old country boy saved by the grace of God.
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todd blair
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Posted: 12 Oct 2016 at 8:21pm |
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Thank you Hubert.
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Dan73
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Joined: 04 Jun 2015
Location: United States
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Posted: 12 Oct 2016 at 8:30pm |
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I like Rotella 10w30 it is diesel rated and has the additives that helps with the flat tappet. I run it year around in mine here in NH.
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todd blair
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Posted: 12 Oct 2016 at 8:33pm |
Thank you Dan, I use to have a 8n ford and I put detergent oil in it and it cleaned the engine up but it made it start smoking. I used 10W30 penzoil.
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Clay
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Posted: 12 Oct 2016 at 9:20pm |
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John Deere 50-Plus II 15w40
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Ed (Ont)
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Joined: 08 Nov 2009
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Posted: 12 Oct 2016 at 9:43pm |
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Engine gas or diesel? I use 5w40 in my WD45 gasser. Works well and starts in all weather even in winter. I'm in Ont canada. We get some real cool weather here. Oil is Petrocan synthetic or semi synthetic. Can't remember for sure which one. Have to check container.
Edited by Ed (Ont) - 12 Oct 2016 at 9:46pm
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Allis dave
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Joined: 10 May 2012
Location: Northern IN
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Posted: 13 Oct 2016 at 7:49am |
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I would start with 10w-30. Usually unless you're working long and hard in the summer, the 30 weight is thick enough. If you're having low oil pressure when warmed up, you could switch to 15w-40 with the next oil change.
I've been hearing people on here talk about the additives for flat tappets. What are these additives? I've always ran the Valvoline high mileage oil in my 45. I use the same oil in my truck and only stock one oil type. Is there something else I should be looking at?
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bigredisb
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Joined: 16 Aug 2016
Location: Racine WI
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Posted: 13 Oct 2016 at 7:52am |
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ZDDP is a Zinc additive you can add for flat tappets.
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1961 Allis-Chalmers D15
1949 Farmall Super A
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Hockeygoon
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Location: Manhattan, KS
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Posted: 13 Oct 2016 at 8:03am |
 Allis dave wrote:
I would start with 10w-30. Usually unless you're working long and hard in the summer, the 30 weight is thick enough. If you're having low oil pressure when warmed up, you could switch to 15w-40 with the next oil change.
I've been hearing people on here talk about the additives for flat tappets. What are these additives? I've always ran the Valvoline high mileage oil in my 45. I use the same oil in my truck and only stock one oil type. Is there something else I should be looking at? |
Zinc (ZDDP) isn't an issue with these engines. It only becomes an issue with engines with higher lift cams with longer durations and greater spring pressures that really stress the cam lobes. None of which you find in the typical farm tractor engine - especially gas engines over 30 years old. Back when a D17 early series were new (when ZDDP would have been needed for the break in process) the oil didn't even have the ZDDP additive and many times nondetergent oil with no additives was being used.
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