What oil are you using

[WilliamBos]

Keep in mind T-6 diesel rated 5W40 oil is notapproved approved for gasoline engines with catalytic converters and may shorten their service life. That's why rotella now sells T6 gasoline oil that is G rated for autos with cats.

Id do more research on that, many diesels have a catalytic converter, a DOC - Diesel Oxidizing Catalyst.

 

[RustyA]

Diesel cats are completely different than gasoline vehicles. The SN gas oil ratio limits the amount of zinc and phosphorus in the oil. Most CK oils do not meet the SN spec. They won't clog gas cats but the SN spec is meant to extend cat life on low emission gas engines to 250k miles. That why rotella has specific gas oil that meets the SN spec. T6 does not.

 

[WilliamBos]

Diesel cats are completely different than gasoline vehicles. The SN gas oil ratio limits the amount of zinc and phosphorus in the oil. Most CK oils do not meet the SN spec. They won't clog gas cats but the SN spec is meant to extend cat life on low emission gas engines to 250k miles. That why rotella has specific gas oil that meets the SN spec. T6 does not.

Premium Blue Extreme meets SN spec, as does Amsoil

US_Val_PBE_5W40_MO_HD_EN.pdf - Docusign CLM

sharena21.springcm.com

Shell removed the SN spec when they launched the gas truck oil line, it was all about sales, nothing more.

 

[MossyDell]

My 0w30 M1 ESP from Advance Auto just came yesterday. Waiting for the OEM filter from Amazon.

Ralph, are these quarts? I only seem to see it in gallons. I can't figure out the best way to measure out gallons into 3.3 quarts so as not to overfill.

 

[RjCorazza]

I use a 4 gallon oil can graduated in quarts and a one quart finely graduated plastic container for the final fill.

 

[RalphVa]

Ralph, are these quarts? I only seem to see it in gallons. I can't figure out the best way to measure out gallons into 3.3 quarts so as not to overfill.

Got them in quarts.

 

[Williy]

Personally I would use straight synthetic oil using a
blend you might just as well use regular oil. The
synthetic oil will last longer than the regular oil
but what does the regular oil do after running
7000 miles or more to your system???
In a diesel you need diesel oil to take care of
the acid that is produced from the diesel.
Something I don't understand is in Europe
they don't change their oil until they have 10,000
miles or more anyone know the reason? I have
a 2018 Chrysler 300 they want me to change oil
every 5000 miles. I will change about every 7500
miles or more. I use plain synthetic oil 5w20 is
what is called for.

willy

 

[Robin Veerman]

Yep most European changes are 25000kms (metric). The Oil has a high TBN rating in order to fight acidity. Here in North America most diesel oils are lucky to have a TBN of 6-8. Amsoil Synthetic diesel oils range from 10-12 TBN thus allowing extended drain intervals of 2-3 times of OEM recommendations. UOA will help determine intervals for specific applications. Google Amsoil or pm me and I can send a link. Dutchy

 

[oosik]

I use a non-synthetic Rotella 15W40 product. Meets all the specs that Kubota requires.

 

[RalphVa]

Personally I would use straight synthetic oil using a
blend you might just as well use regular oil. The
synthetic oil will last longer than the regular oil
but what does the regular oil do after running
7000 miles or more to your system???
In a diesel you need diesel oil to take care of
the acid that is produced from the diesel.
Something I don't understand is in Europe
they don't change their oil until they have 10,000
miles or more anyone know the reason? I have
a 2018 Chrysler 300 they want me to change oil
every 5000 miles. I will change about every 7500
miles or more. I use plain synthetic oil 5w20 is
what is called for.

willy

Changed every 10k miles on our VW TDI, as recommended. Same now for the Mz3, not a diesel, 0w20 in it; 5w30 in the TDI.

 

[MossyDell]

I'm oil shopping. I find the Amsoil table comparing their heavy duty diesel engine oils in the brochure attached interesting. (Page 2, Typical Technical Properties) They give the results for all the major tests. My primary concerns are cold cranking (starting a cold engine, not necessarily in winter) and wear. So I focused on the CCS Viscosity and the Four Ball Wear Test:

Oil... Cold Start* Wear Test*

5W-30... -30 .45

10W-30... -25 .46

0W-40... -35 .47

5W-40... -30 .46

15W-40... -20 .45


*Lower number is better

Not that I understand much about oil, but I credit Amsoil for presenting data and in a way I can halfway understand it. To me, the information I extracted above show a clear tradeoff between cold cranking and wear protection. Granted, these differences are minuscule, but my concerns appear to boil down to deciding which of these is slightly more important.

The “best” cold cranking goes to 0W-40. But it ranks worst in the Amsoil lineup for operating wear. The least wear is earned by 5W-30 and 15W-40. Overall, I like 5W-30 for its balance and because Kubota seems to like 30 weight oil, and I’m currently using a Kubota. But if 95% of wear occurs at startup, as we hear a lot, then should I pick based on that measure first and foremost?

An Amsoil dealer explains most of these tests and other ones in this YouTube video, “Amsoil vs Everything Else”; for example, he explains that the cold cranking test is an indicator for start-up too, not just for cold winter temperatures:

 

[RalphVa]

Here's a snap shot of the cranking speeds (based on their cranking oil viscosities) by oil type that I calculated. I did not do a 5w30. It would be close to a 0w30, which is the best.

A 0w40 M1 was very close to the 0w30, probably the same as 5w30. I did some other comparisons that tended to show this but didn't redo this table to add the 0w40.

Worst is 15w40. Main way it protects is its higher viscosity probably leaves some protection in place to make up for the LOOOONG time the oil pump needs to get oil to the pressurized parts. The R&B #s that you show say this is not quite so.

 

[MossyDell]

Ralph, yes, the 15w-40 in the Amsoil data shows good wear protection, probably lingering as you say. But look at the much more modest cold cranking. That is where start-up wear occurs. This wear apparently cannot be measured like the four-ball wear test, but it is presumed. And 15w-40 has the worst start-up protection in their lineup.

 

[Massey convert]

I used Amsoil in the early eightys in a Plymouth 318 with around 30,000 miles, when I switched back to conventional oil the engine started using oil. I run full synthetic oil in my vehicles now but, I would not reccomend Amsoil to any of my friends!

 

[MossyDell]

Why can't you recommend Amsoil, Massey? What do you use?

 

[coupman35]

Ok so i just did my oil change i use the kubota 10w30 semi syn .Also did all filter change i nothis after i was done in the hydraulic filter there a magnit in it but did not nothis if the new one had a magnit in it do they come whit one or i have to use the old one . dont wont to take that filter back out to check if the magnet there . let me no please thanks

 

[Thunder chicken]

I would suspect they do, the ones for my M series had new magnets in the hydraulic filters.

 

[coupman35]

Yes they do come whit the new filter got hold of the dealer he sent me a picture and told me that it has a new magnets . Thanks god i did not what to take that filter back off.. I used the vacum to hold the oil back so i din not lose much oil it work pretty good.

 

[RjCorazza]

The old magnets work well holding spare Lynch pins on the PTO shield.

 

[Massey convert]

Why can't you recommend Amsoil, Massey? What do you use?

I have 3 GM vehicles, a 10 Camaro, a 12 Impala, and a 16 3/4 ton truck, I use the "dexos" labled oil required by GM in them, I have no brand loyality when buying it. I used Shell Rotella when I changed the oil in the Massey when I changed the oil in that at 50 hours. I use 30 weight in my Allis's and the small gas engines around the place.