New oil specifications for diesels?

I received a notice from my oil supplier today about new classifications for diesel engines lube oil.CJ-4 will become CK-4 for 2016 engines and older and FA-4 will be for 2017 and newer. Anyone know what is different with the FA-4 oil? Maybe taking the zinc out of series 3 oil?
 
Way I understand it is......

CJ-4 will become CK-4 and will be for use in off road motors.
It will also be combatable with older motors.

FA-4 will be a new low viscosity oil for use in on road motors.
This low viscosity oil will not be combatable with older motors.

The new fuel efficiency standards go into effect in 2017 and engine manufactures are hoping for gain in fuel efficiently with the use of this lower viscosity oil.
 
I believe this is a industry move of engine manufactures asking oil companies to come up with a low viscosity oil to help them meet newer government standards for fuel economy mandates.

This is also the first time in history where the API has considered a split standard in oils to where one oil will be for off road and one will be for on road. They will have to come up with a way to tell them apart. Might use something like 5w30x for one of them and 5w30 for the other.
 
On and off road would make little sense because the construction equipment nowadays has to meet the same tier whatever number we are on as trucks do
 

New gas vehicle have run the 5w20 oils now for some time.. and yes, they claim a 2 percent increase in fuel economy. However the hd diesel engines are design to run on a thicker oil , accouting for wear, and lowered oil pressure at the far end of the oil journals.... Running a thin oil in an engine with lots of wear is a sure fire way to finish it off.

Newer engines can design around the thinner oils by building larger volume oil pump,, not higher pressure and a bigger relief valve so the cold pressure is controlled better. They can also change the width and design of the bearing surfaces. AND they can see an increase in fuel economy.

I was hoping they would come out with a pre "catalyst" hd diesel oil, higher in zinc and phosphorous... for us older equipment users, as it was the best oil known.. newer oils lowered these additives for the emission systems at the expense of wear on our engines.
 
(quoted from post at 07:59:13 08/21/16) Isn't better efficiency and fuel economy good???
In a way, but it causes more wear on the motor, so the mfg gets to sell more parts.

Ain't more free lunch.
 
I believe the zinc has been removed because it creates issues with the new DEF catalytic converters (don't hold me to that)
I always used Rotella, but the guy I buy my fluids from now recommends Kendall - he says they've replaced the zinc with titanium.
Pete
 
Thanks guys for bringing that to our attention. Will be looking out for it and maybe stocking up on Rot 5-40.
 
(quoted from post at 05:59:13 08/21/16) Isn't better efficiency and fuel economy good???

Russ ya gotta take into consideration operating cost over the life of the equipment, not just fuel efficiency. A 2% savings on something that gets 6-8 MPG isn't very much if it causes major failures that can run into the tens of thousands of dollars to repair. Same is true if it needs replacement more often when the cost from a new semi tractor is well over 100K. It's the same with the people who buy a new car to get better mileage. They pay 350 or so a month to save 20 or so in gas over their older paid for car. Somehow that doesn't make much sense. My youngest son drives a late 90's paid for car in good condition. It gets about 31 on the highway. His girlfriend drives a new car that gets about 38. She's paying about 300 a month. Both drive about the same distance to work. But she has the payment, full coverage insurance cost plus gas. He has no payment, minimum coverage and gas. Guess who's spending more on their car every month!

Rick
 
(quoted from post at 19:31:34 08/21/16)
(quoted from post at 05:59:13 08/21/16) Isn't better efficiency and fuel economy good???

Russ ya gotta take into consideration operating cost over the life of the equipment, not just fuel efficiency. A 2% savings on something that gets 6-8 MPG isn't very much if it causes major failures that can run into the tens of thousands of dollars to repair. Same is true if it needs replacement more often when the cost from a new semi tractor is well over 100K. It's the same with the people who buy a new car to get better mileage. They pay 350 or so a month to save 20 or so in gas over their older paid for car. Somehow that doesn't make much sense. My youngest son drives a late 90's paid for car in good condition. It gets about 31 on the highway. His girlfriend drives a new car that gets about 38. She's paying about 300 a month. Both drive about the same distance to work. But she has the payment, full coverage insurance cost plus gas. He has no payment, minimum coverage and gas. Guess who's spending more on their car every month!

Rick

Got a neighbor that traded his old 20 mpg Dodge diesel pickup for a 35 mpg Honda, said the truck was breaking him in fuel cost.
Then he bought a late model F-150 gasser to haul stuff in, but he's saving money, He told me so.

I'm just not smart enough to trade in my old paid for pickup for a newer one with better fuel economy.
 
I have been running Mobil 1 0W 30 in my 2011 4.8 Siverado since it was new. My truck before that was a 2007 Dodge (Ram) Hemi and specifically
said that if you run anything other than 5w 20 the variable 8-4 system wouldn't work. Fine. I put Mobil 1 0w20 in it.
 

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