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Topic: Delo oil - new formula & lower price (Read 1027 times) previous topic - next topic

Delo oil - new formula & lower price

Delo 15w40 oil used to be CJ rated and a newer CK rating is now out, AND Costco has it on sale for most of this month for $10 / gallon.

Official name is Chevron Delo 400 SDE 15W40 CK-4

Re: Delo oil - new formula & lower price

Reply #1 –
FYI, for older engines (like 99% of us own) both Cummins and Caterpillar recommend:

New designation diesel oil recommendation: CK4 15-40. NOT FA4.

No, I have not researched what years the new FA4 is recommended for.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Delo oil - new formula & lower price

Reply #2 –
As I understand it oils are backwards engineered. Meaning as new classifications are introduced the oil still covers all older specs.
Bruce, Linda, and Macy
Zoey RIP 1/20/19
1999 U295 40' build #5400
2017 silver Jeep Wrangler, 1260 watts of solar on top
Moving around the country

Re: Delo oil - new formula & lower price

Reply #3 –
FA-4 has limited backward compatability. It is thinner and engineered for better fuel economy.

CK-4 is what most of us will continue using!
95 U300SE

Re: Delo oil - new formula & lower price

Reply #4 –
What Chevron says: Delo 400 SDE SAE 15W-40 Heavy Duty Diesel Engine Oil

Pretty sure that SAE 15W40 standard must meet certain laboratory requirements. Not sure how any oil with a 15W40 rating could  be "thinner"?  There may be some improvements that reduce friction but a thinner oil would probably have a different SAE rating like 10W30, etc.

Steve
Steve & Sandy
2003 U320 4220 WCDS, build#6160
Motorcade #17794
USMC '67-'71

Re: Delo oil - new formula & lower price

Reply #5 –
Steve,

No FA-4 oils are 15w-40, as far as I am aware.

The oil the OP posted is the CK-4, which is what should be used. No matter what the weight is, FA-4 is only for 2017+ engines that specifically call for it, its weight, and its additive pack. Even if your engine specs a thinner oil, like 10w-30 that kubota specs, you can get the thinner 10w-30 in a CK-4 spec for that older kubota engine, rather than using the non recommended FA-4 10w-30.
95 U300SE

Re: Delo oil - new formula & lower price

Reply #6 –
Thought I would throw this in,just ordered a Futomo drain valve for my 8.3 Cummins,I checked on my Quickserve site and got
the thread size.
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: Delo oil - new formula & lower price

Reply #7 –
From Delo's website:



On December 1, 2016, two new categories of oil standards were licensed: API CK-4 and FA-4.

Both deliver superior performance over current oils. The CK-4  will protect new and older engine models.

And, the FA-4 was designed to provide optimized fuel economy for 2017 engines that are designed to take advantage of these improvements.

So, unless you have an engine with a build year of 2017, you will use the CK-4 oil.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Delo oil - new formula & lower price

Reply #8 –
The main reason for the original post was to let others know Costco has Delo on sale for $10 /gal.

Re: Delo oil - new formula & lower price

Reply #9 –
Quote from: John44 –
Thought I would throw this in,just ordered a Futomo drain valve for my 8.3 Cummins,I checked on my Quickserve site and got
the thread size.
I've used these valves for all my diesels - great convenience.  Just bought 6 gallons at Costco.
2000 U320 mid entry  #5688
2006 Jeep Liberty


USMCR retired
SDFD retired
FEMA US&R TF8
 

Re: Delo oil - new formula & lower price

Reply #10 –
Found the best price on Amazon.
96 U270 BUILD 4810
85 380SL
Drummonds TN.