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Going beyond 6 months

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My first analysis on my 14, 14,188 miles (forgot to log the hours :mad:) and 9 months and one day between changes.

Going forward I'll likely do annual analysis, most of the time the Schaeffer rep throws in a half dozen or so freebies when a delivery is made to the farm, and base my OCI on miles/hours, NOT time.

Figured I would post this up as I see a lot of people concerned about the 6 month intervals, I understand the concern for warranty purposes but beyond that I really see no reason to change based solely on time. The recommendation for these engines in industrial applications is generally 500 hours/annually. Im sure there are exceptions but this is what I see. The only real difference I can see is sump size, most of the time a 6.7 CTD in industrial/Ag will have a capacity in the range of 4-5 gallons which could affect miles/hrs intervals but shouldn't change intervals based solely on time between changes, at least not enough to double the time intervals. JMO :D

I'm sure I'll catch flack for this, fire away :)

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My .02--I do my changes based on miles/hours. The owners manual is contradictory. One paragraph says 15,000 miles or 500 hours and another talks about the 6 month time frame. The promotion hype on the 4th gen. trucks was for up to 15000 mile changes. 6 months makes no sense if you don't put on the hours/miles. As an example, I was negotiating on a 2016 before I bought my 2015. We didn't reach a deal, but I watched that truck sit on the dealer's lot for over a year before being sold. I can guarantee, the dealer didn't change the oil twice before the truck sold.
 
My first analysis on my 14, 14,188 miles (forgot to log the hours :mad:) and 9 months and one day between changes.

Going forward I'll likely do annual analysis, most of the time the Schaeffer rep throws in a half dozen or so freebies when a delivery is made to the farm, and base my OCI on miles/hours, NOT time.

Figured I would post this up as I see a lot of people concerned about the 6 month intervals, I understand the concern for warranty purposes but beyond that I really see no reason to change based solely on time. The recommendation for these engines in industrial applications is generally 500 hours/annually. Im sure there are exceptions but this is what I see. The only real difference I can see is sump size, most of the time a 6.7 CTD in industrial/Ag will have a capacity in the range of 4-5 gallons which could affect miles/hrs intervals but shouldn't change intervals based solely on time between changes, at least not enough to double the time intervals. JMO :D

I'm sure I'll catch flack for this, fire away :)

View attachment 101794

JR, you're so brave. And a hero. I think I will do that too.
 
Sounds good to me, JR:) I don't know what the heck has happened in the last few years but I would guess it is the on line internet, scare "d" cats syndrome :D

I haven't bought a new rig lately, but back in the day when I was still working, I bought lots of new rigs. Never did I take them to a dealer for service, follow the owners manual or keep records, nor did I use oem parts.

However, if I had a new 70k ram, I might be a "scare d cat" too:-laf

Nick
 
JR, That's the lowest Cooper Level I've seen on the 1st service, Whoever cleaned that Oil cooler did a darn good job, Generally the virgin OA shows cooper triple digits..

He bought his truck used, I think that is "his" first service.

Nick
 
At the dealer level we tend to get the worse case scenarios.It is hard to know the big picture of how reliable any line of vehicles are when you get all the failed examples and a smaller sampling of the best examples.The mfg has all the numbers and engineering data to decide on the Oci as well as other maintenance schedules.sure some may be very conservative but the must allow for all types of drivers and conditions.On my personal vehicles I do each service based on the duty cycle I put that vehicle through.On my overfueled,overboosted,overenjoyed 12 valve I tried to use a 3k Oci.It worked out very well for me for the 22 years that I abused it.Sled pulls,drag racing,duning,hauling,desert wheeling at speed,many dyno pulls testing new products,and of course the obligatory trailer pulling.Having gone though 2 nv4500 transmissions due to breakage not wear.The factory recommendations for the rest of the drivetrain were followed.Trippled power output for the life of the truck without engine repairs of any kind.
With my common rail I have never exceeded the oem recommendations but do service the transmission at shorter than oem due to the abuse it sees racing up dunes where
I have been told no 8000lb truck belongs.
 
Schaeffer is damn good oil. And I'm sure you can go 9 months on it. But I would never use Schaeffer oil analysis on Shaeffers oil. Just like i would never use amsoil oil analysis on Amsoil.

Use an independent lab if you are posting results here. There's too much marketing influence in everything and every video they produce
 
At the dealer level we tend to get the worse case scenarios.It is hard to know the big picture of how reliable any line of vehicles are when you get all the failed examples and a smaller sampling of the best examples.The mfg has all the numbers and engineering data to decide on the Oci as well as other maintenance schedules.sure some may be very conservative but the must allow for all types of drivers and conditions.

Well said as usual!

Todd, sorry should have better clarified this.
Engine had 88,000 at time of sample.

No flashpoint test, I'm not certain why as there is a space on the sheet (ASTM7094).

Use an independent lab if you are posting results here

You mean like this company?

http://www.theoillab.com

http://www.theoillab.com/DesktopMod...iveMaintenanceServicesCertScope-ANAB-V001.pdf

Schaeffer's no more has their own oil analysis lab than Amsoil has their own. But I'm sure you knew that because you would neverrr post on a subject you know nothing about :-laf
 
Newsweed Keep your liberocratic misleading comments to yourself, Or post in the appropriate forum, Unless you have some facts or evidence to provide for the members and viewers that Schaeffer's would pad the results its defamatory, This forum standards are much higher and its viewers are not interested in CNN results or misleading rhetoric.
 
As a parent of 2 school aged children I have to admit it is disappointing to see someone that calls themselves a teacher post so often without regard to truth or fact.
 
The combustion engine is not a sealed component, therefore is subject to barometric pressures, so as the pressure increases and decreases allowing the humidity to penetrate the crackcase as well as other sections of an engine. Motor oil is highly hydroscopic (ability to absorb moisture) so it does have a bearing on the OEM's to recommend time intervals. With that being said, I just changed my 07 engine oil at a 12 month interval, mainly because I only ran @ 2K miles for that year, and I'm not that concerned. But that is the reason for a recommended time interval. If I lived in the South East I would be more concerned, as the humidity can be extreme for most of the year. But living in the South West can get very dry for most of the year except for a short monsoonal season in the summer. Now I live in Las Vegas which is even drier, especially during the winter. I believe its more important in a combustion engine vrs a transmission, because of the combustion process and the extreme heat effecting the oil that has absorbed moisture.

Just food for thought.
 
Newsweed Keep your liberocratic misleading comments to yourself, Or post in the appropriate forum, Unless you have some facts or evidence to provide for the members and viewers that Schaeffer's would pad the results its defamatory, This forum standards are much higher and its viewers are not interested in CNN results or misleading rhetoric.

Ok , Todd,

Thanks for your advice. But how is what I said any worse or more defamatory than the multitude of people who said Cummins recommends Power Service fuel additive and Valvoline-branded oil because of money that changed hands? Cummins doesn't need money from Power Service. They have a successful product line. Any money that Power Service could give them would be so small that I doubt they would put their name on the line by endorsing power service. The valvoline relationship is more time-tested. And it is likely that Valvoline has been giving Cummins oil at below cost to put in new engines to repay for having the Cummins endorsement.

JR admitted that Schaeffers gave him free oil samples. So Schaeffers paid for the oil analysis. They might have influence over the results.

Did I post something political?

The combustion engine is not a sealed component, therefore is subject to barometric pressures, so as the pressure increases and decreases allowing the humidity to penetrate the crackcase as well as other sections of an engine. Motor oil is highly hydroscopic (ability to absorb moisture) so it does have a bearing on the OEM's to recommend time intervals. With that being said, I just changed my 07 engine oil at a 12 month interval, mainly because I only ran @ 2K miles for that year, and I'm not that concerned. But that is the reason for a recommended time interval. If I lived in the South East I would be more concerned, as the humidity can be extreme for most of the year. But living in the South West can get very dry for most of the year except for a short monsoonal season in the summer. Now I live in Las Vegas which is even drier, especially during the winter. I believe its more important in a combustion engine vrs a transmission, because of the combustion process and the extreme heat effecting the oil that has absorbed moisture.

Just food for thought.


I agree with everything here.

Except I would think the extreme heat of the combustion process would just help evaporate the water out of the oil.

I'm thinking that instead of it being the extreme heat, but it is the additives and combustion by-products (soot provides a surface area, combustion produces water, and acids) that make manufacturers require 6 month max OCI's. And some of the additives are polar which means they would be hygroscopic and hold onto water.. Engine oil has a max shelf life of 5 years. Mostly because additives can break down over time.

Transmissions fluid has a lower percentage of additives as compared to diesel engine oil.

And (One of) the reason(s) that synthetic diesel oil can go longer than dino..... is it also needs fewer multigrade thickeners. And the lubricating oil itself us designed to do functions that conventional oils rely on additives for.
 
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Newsweed You Attacked the results, NOT the recommendation. Big difference, Hmmm members and viewers BC Something was offer at NO charge it must be Misleading. You also stated that Schaeffer is darn good Oil, than attack the results, So darn good oil must be supported by Bad results? if You plant weeds of doubt provide some facts or evidence, otherwise its regarded as lacking in sincerity or meaningful content.
 
Typical misinformation that he likes to post rather than taking a minute to actually research facts it's easier to slander and muddy the waters. Newsa the family farm does thousands of dollars a year in buisiness through Schaeffer's, the area rep is a real hands on guy he stops in periodically if he's in the area just to say hi and see how things are going on the ground. Throwing in a few oil sample kits here and there as a good will gesture that are processed by an independent lab that has absolutely nothing to gain by smearing results is asnine when your dealing with equipment that runs in the hundreds of thousands of dollars. Read the two links I posted above to educate you and try to tell me again that Schaeffer's has any influence on the results.
 
JR, how many miles on the truck at time of sample. What was the flashpoint, maybe I missed it.

I reached out to Predictive Maintenance regarding this and surprisingly received an answer this evening:


We test flash point if the viscosity is low so that we can give you a percentage of diesel in the oil. We look at viscosity and also the FTIR fuel results and if nothing is throwing a flag, we do not run a flash point.
I hope this helps answer any questions
 
its your truck. FWIW Schaeffers is on Cummins Oil registration list. plenty of fleets do oil analysis and figure out a baseline for determining when to change the oil and filter,nothing wrong with that if a person wants to do it that way, especially if they don't have a warranty to throw away... that said I figure for what it costs to do an oil analysis, its just as cost effective for me to change the oil and filter every 6 months. I don't do 15k in 6 months. plus I like to get underneath the truck and look at stuff.
 
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its your truck. FWIW Schaeffers is on Cummins Oil registration list. plenty of fleets do oil analysis and figure out a baseline for determining when to change the oil and filter,nothing wrong with that if a person wants to do it that way, especially if they don't have a warranty to throw away... that said I figure for what it costs to do an oil analysis, its just as cost effective for me to change the oil and filter every 6 months. I don't do 15k in 6 months. plus I like to get underneath the truck and look at stuff.



Have never done an oil analysis on any vehicle I have ever owned, don't intend to. Would rather just spend that $20-30 as you say on a oil change.

It may have been explained, but I have wondered what an oil analysis does for someone. I get the feeling at times, its the one that needs to stretch that expensive Amsoil out as long as possible. :D
 
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