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Old 03-05-2015, 06:12 PM   #1
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Engine Oil Survey

Getting ready to do my annual engine maintenance and am wondering what brand/type of diesel oil all you people use. Comments??

Boowho??
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Old 03-05-2015, 06:28 PM   #2
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Conoco Phillips 15w40 guardol ect with liquid titanium.

http://www.phillips66lubricants.com/...pid=175&brand=
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Old 03-05-2015, 06:34 PM   #3
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I don't have any diesel engines but I would use the same oil that I have in all of my vehicles....Amsoil synthetic. (But for regular oil, Valvoline is my favorite.)
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Old 03-05-2015, 06:36 PM   #4
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Amsoil 15w-40 in the SD 7.3 since it was new in 2000.195k later it does not use any oil between changes (6k ) and the 7.3 has all its original parts,never been worked on for anything. Same deal with the trans.Amsoil Universal when new,includeing the converter.Added a reurn line filter but kept the stock cooler.Did one sump change at 120k, there was absolutly no residue in the pan or filter,but I felt guilty about re useing the old one ,so it got a new filter.Changed the return line filter 3 or 4 times over the years.The trans fluid I drained out looked and smelled just like the new stuff I put in. Between towing campers,5ers,equipment trailer and horse trailers plus snow plowing for 10 yrs ,its had a hard life,but no worse for it.
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Old 03-05-2015, 06:55 PM   #5
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Shell Rotella T 15w40. Change every 5,000 miles.
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Old 03-05-2015, 06:57 PM   #6
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I've been using Mobil Del Vac 15w40 for the last 9 years. So far, it has worked very well.
Also, if you do a search, you can get a $5/gal rebate from Mobil up to 5 gals.
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Old 03-05-2015, 07:04 PM   #7
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Mobil 1 engine, tranny and rear end since 1978.
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Old 03-05-2015, 07:09 PM   #8
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Quote:
Originally Posted by OldCoot View Post
Mobil 1 engine, tranny and rear end since 1978.

Me too...except the 1978 part
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Old 03-05-2015, 07:10 PM   #9
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Quote:
Originally Posted by OldCoot View Post
Mobil 1 engine, tranny and rear end since 1978.
Coot,
That would be fine if you don't change your oil very often. I always change it once a year (drive less than 10k miles/year) so I feel that regular dino oil is fine.
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Old 03-05-2015, 07:11 PM   #10
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Valvoline Premiun Blue SAE 15W40 rating CES20081 or CJ-4/LS Specified in the cummins manual. I have used it since new 2008. Normally find it on sale at Auto Zone in the fall.
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