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Discussion Starter #1
What oil is everyone using in their Cummins XD? I have been a Mobil 1 fan for years, but according to the Mobil 1 website, they currently do not make a oil that meets the Cummins spec. Would the Shell Rotella T6 work. I prefer to use synthetic. Thanks, Steven

This is from the Mobil 1 website:

"Based on what you've told us, your vehicle manufacturer recommends a 10W-30 viscosity and oil that meets Cummins CES 20081. We currently do not offer any motor oils in the United States that meet these specifications".
 

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You are going to hear all kinds of opinions on this. Already a lot of threads. My dealer has been putting mobile delvec. I plan to start using rotella T5 or T6.


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I use Rotella T6 5w40 runs great. It's good Oil I've been running it for years.

I've never been a fan of the Esso/Mobil brands of oil. Up here is canada that oil doesn't seem to flow as nicely at -30c.
 

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What oil is everyone using in their Cummins XD? I have been a Mobil 1 fan for years, but according to the Mobil 1 website, they currently do not make a oil that meets the Cummins spec. Would the Shell Rotella T6 work. I prefer to use synthetic. Thanks, Steven

This is from the Mobil 1 website:

"Based on what you've told us, your vehicle manufacturer recommends a 10W-30 viscosity and oil that meets Cummins CES 20081. We currently do not offer any motor oils in the United States that meet these specifications".
I'm running Shell Rotella T6 5w40, but in a much colder climate than in your part of Texas. In your part of the country I would stick to a 10w30 that meets specs as its better suited for your temps.
 

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Holey **** oil is cheep in the US. One jug up here is 45 bucks
 

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Rotella T6 5w40
 

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Discussion Starter #11
Thanks for the information everyone. Does Valvoline make the PB full synthetic in 10w-30? All i see on their website is 15w-40. Thanks, Steven
 

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Valvoline premium blue ... just spending money taking care if it for the next owner,,, I am going to trade it off about the time the 5 year/100k warranty is getting close to expiration....xxx
 

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Valvoline Premium Blue Diesel is the only one with a Cummins recommendation.
Yes, it is the only one I've seen that meets the CES20086 spec instead of the earlier CES20081 Cummins spec. On their website they've moved to the CES20086 spec as the recommended oil. There is another thread on here about that.

Among other things I think it delivers even lower ash content/byproduct. Which may make a difference for longevity of the DPF before it fills to capacity with ash and must be replaced. I shudder to think what that costs for those not deleting and putting a lot of miles on their trucks!
http://www.imakenews.com/lubritec/e_article003386232.cfm?0,w&euid=[[euid]]
 

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Thanks for the information everyone. Does Valvoline make the PB full synthetic in 10w-30? All i see on their website is 15w-40. Thanks, Steven
69rrvet: I used to live for years in the Clear Lake/Dickinson area south of Houston. Ran 15w-40 in my old 91 Dodge 12 valve Cummins for years. Times change...but the listing on our trucks also includes 5w-40 which Valvoline does make in PB synthetic in the Amazon link XDHunter provided above. I've got 3 gallons from Amazon waiting for the next change. That would work well in your climate I would think.
 

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I ran Valvoline PB in my 7.3 and I noticed then that it seemed to quiet down the noise a bit. I ran motorcraft in my 6.7 for years and seemed just fine. I am planning on running the Valvoline in mine when I change it.
 

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FWIW, I ran into a developer from Nissan who helped put the Titan XD together (Nissan has a test facility out here in AZ) as he saw my truck at Ace Hardware one day and just wanted to know how I liked it. He told me to run T6, which is what I have been doing. I'm at 53,000 miles and it's been rock solid thus far. I know Valvoline makes good oil too.
 

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Discussion Starter #17
Valvoline premium blue ... just spending money taking care if it for the next owner,,, I am going to trade it off about the time the 5 year/100k warranty is getting close to expiration....xxx

My plans are to keep the truck at least 20 plus years so I want nothing but what I feel is the best available today. I'm 50, so hopefully it will be my last one to buy. That's why I'm doing the research. I'm not the one to buy and trade every few years. My son just turned 16 so he got my 1997 Chevy Z71 with 240,000 miles on it that I was driving. That truck is rock solid and has had minimal service issues. Had it not been for my son, I would still be driving the Chevy. Thanks, Steven
 

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Currently using AMSOIL and plan on having an oil analysis when I change at 10000 miles. Will post the results. It is going to be a little while though as I currently only have 3000 on this oil change.
 

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Valvoline premium blue ... just spending money taking care if it for the next owner,,, I am going to trade it off about the time the 5 year/100k warranty is getting close to expiration....xxx

My plans are to keep the truck at least 20 plus years so I want nothing but what I feel is the best available today. I'm 50, so hopefully it will be my last one to buy. That's why I'm doing the research. I'm not the one to buy and trade every few years. My son just turned 16 so he got my 1997 Chevy Z71 with 240,000 miles on it that I was driving. That truck is rock solid and has had minimal service issues. Had it not been for my son, I would still be driving the Chevy. Thanks, Steven
These things will completely fall apart way before the 20 year mark. With the technology that's in newer vehicles it's best to ditch them after a 10yr/100k extended warranty is up at the maximum, even then it's pushing it. This is industry wide.
Just do the maintenance, fuel it & drive it.
Heck, the DPF only has a 150k estimated lifespan....
 

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These things will completely fall apart way before the 20 year mark. With the technology that's in newer vehicles it's best to ditch them after a 10yr/100k extended warranty is up at the maximum, even then it's pushing it. This is industry wide.
Just do the maintenance, fuel it & drive it.
Heck, the DPF only has a 150k estimated lifespan....
This is BS. Please show me where you are getting your information. Obviously, 20 years is a strech for any vehicle but dumping your Titan at 100,000 because it's played is ridiculous. Show me where the DPF is only good for 150,000 miles according to Cummins. Know this, if Cummins or Nissan engineered this truck to fail after 100,000 miles they'd be done. Remember, Nissan showed the big 3 what fer in the 70's by making a Datsun that would go well over 150,000 miles while Ford, Chevy and Chrysler where purposefully making cars that would self destruct at 90,000 so you would have to buy another car from them. Remember the Ford apology 3 decades later. IMHO
 
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