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Joined: Aug 2011
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Campfire Regular
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OP
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I have used Shell Rotella T 15w40 since about 1985. Used Delo 400 for a short time in my first diesel pickup but quickly switched to Rotella T because of better availability. Sold my last diesel pickup this year but still have a diesel Kubota tractor and diesel Kubota RTV X900 UTV.
Right after changing oil in the UTV the first time using Rotella T, I noticed a smell like I had spilled some oil on the exhaust manifold. I never could find any and in a few hours, the smell went away. Later, I found a comment on the internet about the smell of new Rotella T. Last time I changed the UTV oil, I used Chevron full synthetic 5w40. There was no smell at all. I've never noticed this odor with any tractor or pickup.
Has anybody experienced this smell ?
What is your favorite diesel oil, especially in tractors? I'm considering Mobil Delvac, Chevron Delo 400 and Rotella T.
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Joined: Nov 2015
Posts: 19,215
Campfire Ranger
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Campfire Ranger
Joined: Nov 2015
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I use Mobil Delvac in one diesel tractor, and Rotella in the other. No problems with either. The only reason I'm using the Rotella is because that's what the previous owner used, and I didn't want to switch.
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Joined: May 2016
Posts: 60,550 Likes: 22
Campfire Kahuna
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Campfire Kahuna
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I am MAGA.
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Joined: Apr 2017
Posts: 531
Campfire Regular
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Campfire Regular
Joined: Apr 2017
Posts: 531 |
Never owned anything diesel, if I did I would run Rotella. $22 a jug at Walmart, available at any Walmart(everywhere) and a quality product.
I run T6 in my BMW 325i.
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Joined: Aug 2011
Posts: 1,331
Campfire Regular
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OP
Campfire Regular
Joined: Aug 2011
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I used to worry about switching oil brands but don't now. Any odor with the Rotella T? I think it has to be coming from the crankcase venting. Not sure either of my engines even vent to the atmosphere anymore. That is probably against some Federal regulation.
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Joined: Aug 2011
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Campfire Regular
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OP
Campfire Regular
Joined: Aug 2011
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Well, Conoco wasn't on my radar. I'd rather stick with something I can order from Wally World. Does Conoco make their own oil?
Do you ever use 10w30 up there in the cold? My Kubota tractor says 15w40 down to 14, then 10w30. We get below zero here some but most starts are probably above 14 degrees. The tractor has a block heater and I plug it in if it's below freezing or so. Still, that doesn't warm the oil.
I put synthetic in the Ute because it doesn't have a block heater and gets started in the cold way more than the tractor.
Last edited by AnsonRogers; 11/02/19.
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Joined: Feb 2001
Posts: 3,008
Campfire Tracker
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Campfire Tracker
Joined: Feb 2001
Posts: 3,008 |
if you got a block heater in the Kubota 15w40 dino will suffice ...I prefer Delvac
I use 5w40 synthetic in anything that gets started during the winter in these parts
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Joined: Feb 2011
Posts: 26,389 Likes: 6
Campfire Ranger
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Campfire Ranger
Joined: Feb 2011
Posts: 26,389 Likes: 6 |
Rotella in my JD x495, it's the only diesel I own.
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Joined: Jun 2012
Posts: 10,068
Campfire Outfitter
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Campfire Outfitter
Joined: Jun 2012
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I used Rotella T6 for a long time with good results. The last few oil changes I've used the Chevron 5w40 synthetic and noticed no change. It's a coupla bucks cheaper per gallon and available at WM.
Mercy ceases to be a virtue when it enables further injustice. -Brent Weeks
~Molɔ̀ːn Labé Skýla~
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Joined: Jan 2019
Posts: 690
Campfire Regular
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Campfire Regular
Joined: Jan 2019
Posts: 690 |
Use to run Mobil One but recently switched everything to Schaeffer's..
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Joined: May 2016
Posts: 60,550 Likes: 22
Campfire Kahuna
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Campfire Kahuna
Joined: May 2016
Posts: 60,550 Likes: 22 |
Well, Conoco wasn't on my radar. I'd rather stick with something I can order from Wally World. Does Conoco make their own oil?
Do you ever use 10w30 up there in the cold? My Kubota tractor says 15w40 down to 14, then 10w30. We get below zero here some but most starts are probably above 14 degrees. The tractor has a block heater and I plug it in if it's below freezing or so. Still, that doesn't warm the oil.
I put synthetic in the Ute because it doesn't have a block heater and gets started in the cold way more than the tractor. Haven't gone with 10-30 yet. Did try some Rotella last winter. It was 5-40 or some such thing.
I am MAGA.
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Joined: Sep 2014
Posts: 21,854 Likes: 4
Campfire Ranger
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Campfire Ranger
Joined: Sep 2014
Posts: 21,854 Likes: 4 |
Rotella.
Delvac would suit me, but availability isn't good.
Honestly, I would feel safe with any oil properly rated, But don't have to do that.
Now a question. How could any one person not running a fleet of dozens of constant running engines honestly judge?
And, does anyone really think in today's connected/litigious society, That any company could get away with substandard oil?
Parents who say they have good kids..Usually don't!
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Joined: Oct 2008
Posts: 4,218
Campfire Tracker
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Campfire Tracker
Joined: Oct 2008
Posts: 4,218 |
I use Rotella T 15w-40 in my Dodge Cummins. My Kubota tractor calls for 10w-30, and I use Rotella in that too, harder to find though.
Years ago Rotella T was kind of famous for an oil stink right after oil change, but they changed something to stop it.
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Joined: Nov 2015
Posts: 5,677 Likes: 1
Campfire Tracker
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Campfire Tracker
Joined: Nov 2015
Posts: 5,677 Likes: 1 |
Ran Rotella T in the Volvo L90 loaders when I was working. The highest hours for any of the five loaders, 32000 hours using Rotella T. She'll oil wanted to use our machines in advertisements, we declined! The other loaders averaged 26000 hours before rebuilding. Prior to using Rotella T 20000 hours was the longest we got! That was changing oil weekly! That said my experience with other oils is limited. Each oil change, from each machine was sampled and sent to the shell lab, to be analyzed! As the machines got older the samples gave great information about what was happening to the machines! All oil companies make good oil, and not many run there machines 24 hours a day, six days a week! Delo is what I run in my duramax, because that's what the prior owner used. The smell I never noticed from Rotella T!
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Joined: May 2004
Posts: 5,202
Campfire Tracker
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Campfire Tracker
Joined: May 2004
Posts: 5,202 |
I have used Rotella T6 for several years and never noticed any weird smell. I have not bought it in about 1 yr however. I use the T6 all the time in My Duramax and it is easy to find.
But the fruits of the spirit is love, joy, peace, patience, kindness, goodness,faithfulness, Gentleness and self control. Against such things there is no law. Galations 5: 22&23
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Joined: Jan 2001
Posts: 10,970
Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2001
Posts: 10,970 |
Shell Rotella or Mobil Delvac 1. Delvac 1 is “not” easy to find! memtb
Last edited by memtb; 11/02/19.
You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel
“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
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Joined: Aug 2011
Posts: 1,331
Campfire Regular
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OP
Campfire Regular
Joined: Aug 2011
Posts: 1,331 |
What was the previous oil used? How many hours between oil changes on Rotella T?
Good info, thanks.
Last edited by AnsonRogers; 11/02/19.
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Joined: Apr 2011
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Campfire Savant
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Campfire Savant
Joined: Apr 2011
Posts: 151,770 Likes: 15 |
I use Rotella in my Dodge Cummins
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Joined: Aug 2011
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Campfire Regular
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Campfire Regular
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One other question....My Kubota M6-131 calls for the first oil change at 50 hours. I've done that and now have about 140 hours total time. That's in a little over 2 years. Next change is due at 400 hours. Nothing is said about time. That would be years from now. How long, time wise, would you go between oil changes?
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Joined: May 2016
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Campfire Kahuna
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Campfire Kahuna
Joined: May 2016
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Not a bad idea to go at least yearly.
The diesel today has low sulfur, but its still a good idea to get the water out of the crankcase once in a while.
I am MAGA.
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