Diesel Oil change kits available.

[newdude]

You can also waste hours and days on Bob Is The Oil Guy (BITOG) but your head will spin over there.  

[newdude]

TLDR.  Amsoil's Dexos D entry is a great oil, Schaeffer's Dexos D option is a great oil, Mobil 1's Dexos D options are great as well, as is the AC Delco stuff.  Are some of those superior to even the ACDelco Dexos D which is made to the Dexos spec to a T?  Yes.  Its up to you if you want to run them or not and have a clean, long living engine.  

 

Anywho.  back on topic to oil changes kits from Nick!

[Black02Silverado]

@newdude, Thanks for the explanation and great information.

[Atlas]

16 minutes ago, newdude said:

TLDR.  Amsoil's Dexos D entry is a great oil, Schaeffer's Dexos D option is a great oil, Mobil 1's Dexos D options are great as well, as is the AC Delco stuff.  Are some of those superior to even the ACDelco Dexos D which is made to the Dexos spec to a T?  Yes.  Its up to you if you want to run them or not and have a clean, long living engine.  

 

Anywho.  back on topic to oil changes kits from Nick!

 

Again, seems silly for Amsoil not to license their oils. Imagine the number of customers they'd pick up just by assuring their customers that their oils meet/exceed the requirements (or...do they, actually?). I guess we'll never know since Amsoil continues to refuse to do so.

 

I was hopeful with this new engine and the newer Dexos D cert that Amsoil would do something.

 

Welp, I'm back to Mobil for now.

[Black02Silverado]

7 minutes ago, Atlas said:

 

Again, seems silly for Amsoil not to license their oils. Imagine the number of customers they'd pick up just by assuring their customers that their oils meet/exceed the requirements (or...do they, actually?). I guess we'll never know since Amsoil continues to refuse to do so.

 

I was hopeful with this new engine and the newer Dexos D cert that Amsoil would do something.

 

Welp, I'm back to Mobil for now.

No reason to pay GM. That is an expense that they would have to pass down to their customers. AMSOIL has been around for over 50yrs. I could not begin to guess how many satisfied customers have been using it since they started back in 1972. They were the first company to get an API licensed synthetic. Way before Mobil or any other company.

 

The main thing is use what makes you happy, that is all that matters. 

[customboss]

1 hour ago, Black02Silverado said:

No reason to pay GM. That is an expense that they would have to pass down to their customers. AMSOIL has been around for over 50yrs. I could not begin to guess how many satisfied customers have been using it since they started back in 1972. They were the first company to get an API licensed synthetic. Way before Mobil or any other company.

 

The main thing is use what makes you happy, that is all that matters. 

Marketing works and paid licensing works. Same.   Arguing about it to the uninformed is a losing battle.  For 46 years I have tried to explain OEM licensing means nothing under US law UNLESS THE OEM PAYS FOR THE PRODUCT FOR THE CUSTOMER. 

 

At Cummins we listed Cummins Engineering Standards ( CES licenses to get MIN passable product for our engines ) AND paid testing to Cummins by the blenders. $$$$  

 

API licensing = MIN standard.  $$$$ for minimum quality passable by chemical standards. 

 

GM licensing is slightly higher quality for A LOT OF $$$$.  Another min standard + a little better performance testing.  

 

Those here that are in the know use better than OEM products because they pay for themselves. 

 

Those that  sleep better on a wing and a prayer of marketing BS that some giant blender paid to get their cookie cutter product to pass for a high $$$ license are chemically blind.   

 

 

 

 

Edited June 19, 2025 by customboss

[Z45]

Owners manual.  Notice the shaded area,   the words  "or equivalent".

 

You have a choice!

[newdude]

15 hours ago, Atlas said:

 

Again, seems silly for Amsoil not to license their oils. Imagine the number of customers they'd pick up just by assuring their customers that their oils meet/exceed the requirements (or...do they, actually?). I guess we'll never know since Amsoil continues to refuse to do so.

 

I was hopeful with this new engine and the newer Dexos D cert that Amsoil would do something.

 

Welp, I'm back to Mobil for now.

 

 

...stop...getting...hung up...on the licensing...

 

What happened before Dexos?  Oh wait, every oil was SAE and API certified just like they continue to be now.  GM had a non marketed oil criteria standard prior to Dexos and all those API/SAE oils prior met that standard too.  The Dexos name when it came out led to all sorts of confusion and people looking for Dexos oil which was never an oil, just a spec.  It created a sort of fear that only GM and its dealers carried this magical Dexos oil and nobody else did.

Edited June 20, 2025 by newdude

[txab]

Seems to me, Atlas is a flat earther. Even if Amsoil was licensed by GM he'd probably whine, "Why is it more expensive than Brand XYZ (Mobil in his case)? It's got the same licensing so it shouldn't be more expensive and it must not be that much 'better'".

 

Plenty of lubricants out there that beat Mobil in real world testing, which is what counts. Also without voiding any warranties. 

Edited June 20, 2025 by txab

[Z45]

Proof is all about money........

 

 

Edited June 20, 2025 by Z45

[Atlas]

29 minutes ago, txab said:

Seems to me, Atlas is a flat earther. Even if Amsoil was licensed by GM he'd probably whine, "Why is it more expensive than Brand XYZ (Mobil in his case)? It's got the same licensing so it shouldn't be more expensive and it must not be that much 'better'".

 

Plenty of lubricants out there that beat Mobil in real world testing, which is what counts. Also without voiding any warranties. 

 

That's pretty bold of you as a moderator to call me a flat-earther and call what I'm doing "whining". Have you read the forum rules?

[Atlas]

1 hour ago, newdude said:

 

 

...stop...getting...hung up...on the licensing...

 

What happened before Dexos?  Oh wait, every oil was SAE and API certified just like they continue to be now.  GM had a non marketed oil criteria standard prior to Dexos and all those API/SAE oils prior met that standard too.  The Dexos name when it came out led to all sorts of confusion and people looking for Dexos oil which was never an oil, just a spec.  It created a sort of fear that only GM and its dealers carried this magical Dexos oil and nobody else did.

 

 No, actually, the more I read, not even Amsoil is obtaining API licensing for some of its oils. Why?

 

I remember when Dexos came out. There wasn't much confusion, only from people who were unable to read about an oil spec and licensing process.

 

Is it that Amsoil can't afford to license its oils because too much of the margin is vacuumed up in its Amway-like pyramid sales scheme?

 

Will my engine run to 200k on oils other than Amsoil? Because it seems to be implied that maybe it won't. But where's the proof, or is that just more Amsoil-spook? I asked for simple information in my original post, and a cult has appeared in defense of this magic potion.

 

I don't doubt that it's decent oil. Better than Mobil? Sure, I'm certain there are tests which show it's objectively better in some, maybe all categories. But it lacks a Dexos license and that's important to me as a consumer who wants GM to honor its warranty without question, and I don't want to rely on an oil company that refuses to do something simple and cheap to back me.

 

Edit: I will add that I'd gladly buy it and pay the few cents extra if it was licensed. Easy!

Edited June 20, 2025 by Atlas

[customboss]

21 minutes ago, Atlas said:

 

 No, actually, the more I read, not even Amsoil is obtaining API licensing for some of its oils. Why?

 

I remember when Dexos came out. There wasn't much confusion, only from people who were unable to read about an oil spec and licensing process.

 

Is it that Amsoil can't afford to license its oils because too much of the margin is vacuumed up in its Amway-like pyramid sales scheme?

 

Will my engine run to 200k on oils other than Amsoil? Because it seems to be implied that maybe it won't. But where's the proof, or is that just more Amsoil-spook? I asked for simple information in my original post, and a cult has appeared in defense of this magic potion.

 

I don't doubt that it's decent oil. Better than Mobil? Sure, I'm certain there are tests which show it's objectively better in some, maybe all categories. But it lacks a Dexos license and that's important to me as a consumer who wants GM to honor its warranty without question, and I don't want to rely on an oil company that refuses to do something simple and cheap to back me.

 

Edit: I will add that I'd gladly buy it and pay the few cents extra if it was licensed. Easy!

Fear driven by obfuscation works! 
 

 

[Atlas]

11 hours ago, Z45 said:

Owners manual.  Notice the shaded area,   the words  "or equivalent".

 

You have a choice!

 

Yes, we as consumers do have a choice. I choose peace of mind in this regard.

 

Licensed doctors have been through schooling which certify they meet minimum requirements in order to practice medicine. It may not be an indicator of actual or future performance, but they did meet the requirements at the time they were licensed.

 

There are requirements to keep that license. And, it's also telling if they lose that license. Translating this to Amsoil, how do we know it still meets/exceeds Dexos spec, or API spec for that matter? We have to rely on independent testing or for Amsoil to publish any changes to the oil they make which may differ from the engine's requirements. Then it's on the consumer to keep up and monitor those changes.

 

How many of you do that -- or do you rely on word of mouth, and your beliefs?

 

I realize I'm not going to convert any of the worshippers here. Again, I don't think it's bad oil, but I am disappointed that Ams has failed to license again in this regard. These engines have different needs than a typical gas motor and the emissions equipment is expensive...

[newdude]

37 minutes ago, Atlas said:

 

Yes, we as consumers do have a choice. I choose peace of mind in this regard.

 

Licensed doctors have been through schooling which certify they meet minimum requirements in order to practice medicine. It may not be an indicator of actual or future performance, but they did meet the requirements at the time they were licensed.

 

There are requirements to keep that license. And, it's also telling if they lose that license. Translating this to Amsoil, how do we know it still meets/exceeds Dexos spec, or API spec for that matter? We have to rely on independent testing or for Amsoil to publish any changes to the oil they make which may differ from the engine's requirements. Then it's on the consumer to keep up and monitor those changes.

 

How many of you do that -- or do you rely on word of mouth, and your beliefs?

 

I realize I'm not going to convert any of the worshippers here. Again, I don't think it's bad oil, but I am disappointed that Ams has failed to license again in this regard. These engines have different needs than a typical gas motor and the emissions equipment is expensive...

 

 

Definitely not a worshiper but you are way overthinking this.  

 

Edited June 20, 2025 by newdude