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Old 01-22-2019, 10:50 AM   #1
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Oil question

I have a John Deere turbo 150 HP diesel in a forty foot Trawler that I change oil every 100 hours. We just got a new Costco in town, “first ever”, and I had never been in a Costco before. Strolling around, I found they were selling dello 15 40 three one gallon jugs for a decent price. Will I be okay using this if it’s rated api or do I need to be concerned by anything else? Thanks in advance.
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Old 01-22-2019, 11:18 AM   #2
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Should be fine as long as it is rated for diesels and the Delo brand is specifically for diesels.



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Old 01-22-2019, 11:30 AM   #3
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Been using that oil in my twin Volvos for 20 years.
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Old 01-22-2019, 11:37 AM   #4
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Well regarded by engine guys. I think "DELO" stands for diesel engine lubrication oil.

Just make sure the API spec and viscosity meet your Deere's needs. Almost certain it does.

100hr change is a short interval. Most engines are around 200-250hr and can be stretched based on samples.
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Old 01-22-2019, 11:39 AM   #5
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I imagine you would be fine with it. My only comment would be to ask if you're still under warranty with the engine. I have a JD 4045 and chose to use JD's oil through the warranty period. Figured it was worth the small price difference to have the dealer on my side as he knew I was buying the oil from him.

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Old 01-22-2019, 12:45 PM   #6
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I have used Delo in my previous boat with Cat diesels and my current boat with Lehman diesels. I was in the auto parts business for many years and sold lots ans lots of the stuff to my customers with diesels. Just don't want to buy it in Canada. Last summer I needed some and had to pay $28.00 for a gallon. Just bought some here in the Northwest and paid $13.99 a gallon. I am taking plenty with me this year.
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Old 01-22-2019, 01:45 PM   #7
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Deere doesn't make their own oil, contractors do. If Chevron (DELO) doesn't have the contract it is probably because they weren't one of the lowest bidders.


I've been there. Refineries are not run by perfectioni$ts.
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Old 01-22-2019, 03:10 PM   #8
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Companies may not make their own oil but they may have it made for then to their own specs.

And there is a difference according to independent oil analysis.
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Old 01-22-2019, 03:34 PM   #9
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Quote:
Originally Posted by psneeld View Post
Companies may not make their own oil but they may have it made for then to their own specs.

And there is a difference according to independent oil analysis.
Yup. Here’s an oil discussion from a gear head who has done a lot of testing of oils and other stuff. It’s long but worth the read imho.

https://540ratblog.wordpress.com/201...-test-ranking/
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Old 01-22-2019, 03:43 PM   #10
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Oil question

Thank you everyone for your replies. My same thoughts regarding dello, just needed a reality check.
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Old 01-23-2019, 12:46 AM   #11
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There are two Delo formulas. Delo 100 for 2 stroke engines and Delo 400 for 4 stroke engines. Which formula purchased was not mentioned. JohnDeere was mentioned so that would require Delo 400.
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Old 01-23-2019, 08:55 AM   #12
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Dictionary meaning

Quote:
Originally Posted by Larry M View Post
Yup. Here’s an oil discussion from a gear head who has done a lot of testing of oils and other stuff. It’s long but worth the read imho.

https://540ratblog.wordpress.com/201...-test-ranking/
If yoy look up "anal" in the dictionary, there is reference to this article.
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Old 01-23-2019, 09:18 AM   #13
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Here's a link to the best article I have seen on marine diesel oils. Too many are OTR w emission equipment and not apple's to apple's IMHO
Go to the Cox Eng Marine Diesel Oil article

http://dkloeber.wixsite.com/bacchus/links
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Old 01-23-2019, 07:44 PM   #14
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I have been using that exact oil from Costco for my JD 4045 TFM75. It meets the spec in my manual. Last analysis w/174 hours on the oil, at drain time, was good.
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Old 01-23-2019, 08:06 PM   #15
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It meets the spec in my manual. .
And IMHO that's where any of these oil discussions should end.
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Old 01-23-2019, 08:39 PM   #16
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And IMHO that's where any of these oil discussions should end.
Agree mostly except I would check latest recommendation from mfg vs whst was printed in older manual.
Mfg do update recommendations for same engines as newer specs become available.
They don't always endorse the latest spec oils.
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Old 01-24-2019, 05:53 AM   #17
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Agree...look into the science

New engines especially under warranty...hard to argue with changing from manufacturer sold or recommended oil.

But a 50+ year old design like a Ford Lehman? I think more modern oils are probably the way to go as long as you understand and meet the oridinal requirements of the engine, then any improvements are gravy.
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Old 01-24-2019, 06:04 AM   #18
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Agree...look into the science

New engines especially under warranty...hard to argue with changing from manufacturer sold or recommended oil.

But a 50+ year old design like a Ford Lehman? I think more modern oils are probably the way to go as long as you understand and meet the oridinal requirements of the engine, then any improvements are gravy.
Good point on OLDER engines... probably can't even find what was recommended anymore.
My only point is that all newer oils are not necessarily "better" for our use. I believe some of the additive changes for emissions (OTR, & emissions treatment) may be less than optimal when / if used in marine applications.
At least that was one of the points I picked up from the references Cox Eng article.
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Old 01-24-2019, 05:46 PM   #19
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Here's the John Deere oil page. If it doesn't put you to sleep at night I want coffee like yours.

Quote:
Plus-50™ II exceeds the requirements of the American Petroleum Institute (API) Service Category CK-4 for use in high-speed four-stroke diesel engines and is backward compatible to meet previous API engine oil classifications.
https://jdparts.deere.com/partsmkt/d...15W40_0W40.htm
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Old 02-19-2019, 11:13 PM   #20
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Synthetic Engine Oil: Right for older diesel engines?

I have a 14 year old Volvo TAMD41P-A 6 cyl. 200 HP turbo diesel engine in my Camano. The manual recommends 15W-40 diesel engine oil. The Synthetics I have seen on the market (Mobil 1, Shell's Rotella, etc.) for diesels seem to be mostly 5W-40. Are these lower cold pour synthetics compatible with older engines like mine? Does anyone know of authoritative articles on this subject?

It seems like using a synthetic with higher temperature tolerance, fewer contaminants than mineral oil, and better initial flow when starting up engines that experience longer time segments between use seem to make sense, while having the same high temperature viscosity as mineral oils. Seems like there should be some research literature out there, including recommendations from engine manufacturers. Goal, of course, is engine longevity, not searching for better mileage at the risk of higher engine wear. I welcome good research and recommendations from authoritative sources!

Thanks!
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