AMSOIL has a 5W-40 product that meets the specs.
"AMSOIL Premium 5W-40 Synthetic Diesel"

https://www.amsoil.com/shop/by-product/motor-oil/diesel/premium-api-cj-4-synthetic-5w-40-diesel-oil/

I'm not saying this is the best choice - just getting it on the list.

 

So. Does t6 meet the specs? It would be nice to see a uoa of 5-40 vs 5-30 out of the same motor

 

Rotella is specifically mentioned, so I'd say yes. It's ACEA E9.

 

I agree. it's hard to imagine what other Shell Rotella the new FCA manual is pointing to other than T6. I'm banking on it - bought some today.

 

I took my truck to the dealer for an oil change yesterday. I didn't look at the invoice until I got home. I was surprised to see that they had installed Shell Rotella T6 HD full synthetic. I was going to phone the dealer to inquire but I guess that is not necessary.

Very glad to see a much better oil is now approved.

 

What did they charge you for the oil change? I couldn't get a straight answer from my dealer on how much less they will be charging.. It should be at least $60 less since the T6 oil is about $6 a quart less.

 

I'm glad to see the change but I just shipped $100 in 5w-30 Amsoil about 3 weeks ago for a change....now what do I do with that stuff...


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In my humble opinion, I would just go on and use it.

 

When will this become official? Is there a website or a memo so that a warranty claim can't be refused if switching to the new revision? Thanks

 

It's official as of the 7th edition diesel supplement to the owners manual. See post #1

 

Shell has $5 off per gallon rebate up to 4 rebates per person for Rotella T6...

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Rotella T6

I looked at the Rotella T6 PDS and it didn't mention MS-10902, so I asked the Technical Help Desk at shelltechnical-us@shell.com

Here was the reply-

Hello Lunar Module,
Yes, Rotella T6 5W-40 meets the MS-10902 specifications. Thanks for your interest in Rotella!

Regards,

Keith Perry

Shell Technical Information

(800) 237-8645 Option 3, 1

Email: shelltechnical-us@shell.com

Technical data sheets and MSDS may be found at: www.epc.shell.com

Here is the T6 PDS
View attachment GPCDOC_X_cbe_24855_key_140008546848_201604130543.pdf

 

Valvoline Premium Blue Extreme 5W40

It appears that Valvoline Premium Blue Extreme is another option.

http://content.valvoline.com/pdf/premium_blue_extreme.pdf

Can be bought at NAPA-

NAPA PN VAL774038

https://www.napaonline.com/napa/en/p/VAR774038/#

 

See edited post #16

More information from Chevron LubeTek

 

See edited post #16
Updated reply from ExxonMobil.

 

This is excellent news!

 

5$ us rebate per gal on oil until dec 2016, amazon 19.10 per gal or 3 gal pack for under $60.

 

OK so the word on the street is that FCA is doing a reflash along with adding labels to our oil caps. What about us GDE guys? Will GDE be offering a re-tune as well with the new oil?

 

You beat me to it!

 

I for one, will not be getting the reflash untill I know what it does! My best guess they will be flashing the "Transmission control module". This will hold the transmission in it's gear longer before it up shifts into a higher gear. This probably means the engine will be running a higher rpm and again a lowering of fuel economy. The last flash raised our idle rpm 100-150 rpm to move the oil faster. When brake or placed in gear it lowers back, allowing truck not to jump or bump to the Drive mode. Ambient temperatures also effect the rpm cycle!

I will do the oil switch, but not going to do the flash unless it is a recall letter! That way we have a avenue for recourse, if fuel economy drops considerably.
I just had a feeling an update flash was coming along with this change of oil!

The only way to raise oil pressure (psi) is to raise engine rpm, or hold transmission longer before an up shift allowing engine to keep oil psi numbers higher protecting the bearings at fuel economy loss.

Thxs

 

Here's the TSB View attachment TSB-18-078-16 Oil Spec Change.pdf

 

The TSB says only 2016 models, wonder if here a separate one for the rest of us or if the specs will stay the same for us as they are concerned about switching out the oils.

 

GDE stated in another post:

"Currently the TSB is for 2016 trucks since they're the only ones with the corresponding reflashes available. The others (2014-15) will likely follow in a month or so, depending on new flashes availability.
Oil spec change applies to all."

 

Is the PCM and the ECU the same thing?

 

Yes

 

Is possible to just do separate TCU flash without overriding the GDE programmed ECU?


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One of the reasons I bought the Diesel was for the lower RPM operation (and associated fuel economy). Now they want to flash the trans to make it work more like a gas engine transmission. WTF? I think I will refuse both the ECU and TCM updates unless there are no options and or GDE recommends the trans update.

 

Lower RPM helps with the mpg's but the real kicker is that diesel fuel should get more mpg's because diesel has more energy in it per unit of volume than does gas. Keeping the RPM's up on the motor may help with efficiency if it keeps the motor from lugging etc. The final drive ratio will not change, you not going to all of a sudden be turning 2500 rpm at 70 instead of 2000 for example.

 

I think I would trade a bit of reduced fuel economy for durability.

 

I agree. My only question is there any changes required of the GDE tune after the transmission tune if I replace the ECM with original , go to dealer ,get ECM and TCM update and oil change, then go home and put my GDE ECM back in. Or does the GDE ECM need to be retuned after the update. I guess only GDE can answer that. And probably after they look at what is in the revised ECM/TCM update and how it affects their tune.

 

Diesels don't like to lope along. They need RPMs to be efficient as stated. A gas engine likes to lope to increase fuel economy. That is not to say you need to rev the holy bejesus out of a diesel but it will hep reach the most efficient RPMs for HP and torque more easily. I am sure someone can correct me here if I am mistaken on any of these points.

 

I think saying diesels need rpm's and gas engines like to lope along is dead wrong.

Neither like to be lugged and needs to be operated where it makes sufficient power.

 

GDE posted this-

The trans flash has shift schedule changes so that it won't run at low engine speeds anymore (1200-1400rpm).

1,200-1,400 RPM. I doubt may people will notice the difference. It seems like this would be a low speed, putting around town type of scenario.

 

GDE posted this-


1,200-1,400 RPM. I doubt may people will notice the difference. It seems like this would be a low speed, putting around town type of scenario.

I actually wish the truck would not try to run at rpm's that low, it would make it more responsive. Right now if ive just been rolling along at 1,200-1,400 rpm and I give it a little gas it lugs but doesn't want to downshift after a second it will have a harsher than necessary downshift and act like I was flooring it. I would much prefer it just start in the lower gear like I'm assuming this re-tune will do.

 

>:-| I just spent $130 on that Pennzoil Unicorn Blood and did a change last week... I would've loved to have been able to just gone to walmart and gotten a few gallons of rotella for $70... On a side note i never felt comfortable running 5W-30 in the truck, always went for the pennzoil 5W-40 since that seemed to be the heaviest i could find.

 

The Pennzoil Platinum 5W-40 doesn't meet the new specs (MS-10902 / whatever the cummins number is) but it's probably fine since a lot of dealers have been using it