Mobil 1 ESP 0w30 observations

It only meets/exceeds sp (engine test requirements). It can’t have the api sp donut because the phosphorus is above the limit.

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According to Mobil 1 it says meets or exceeds those requirements and it doesn't say anything about being suitable for use.
Let me try again since I'm not sure what you are missing.

The suitable for use was my comment/opinion which was based on the fact that it exceeds API SP engine test requirements.
So its suitable for use in an engine where API SP oil is requested.

This is different from being an API SP oil.
m1 0w30 is clearly not API SP and never has been.

If you need an api sp oil with that on the packaging m1 5w30 esp IS an api SP oil that meets all the requirements of API SP.. not just the API SP engine testing.
 
Let me try again since I'm not sure what you are missing.

The suitable for use was my comment/opinion which was based on the fact that it exceeds API SP engine test requirements.
So its suitable for use in an engine where API SP oil is requested.

This is different from being an API SP oil.
m1 0w30 is clearly not API SP and never has been.

If you need an api sp oil with that on the packaging m1 5w30 esp IS an api SP oil that meets all the requirements of API SP.. not just the API SP engine testing.
Why didn't you just say that Mobil 1 is basically pulling the same thing that Shell did with the Rotella by giving it their MA rating but was based on "in house testing"... also they dropped the spark rating due to higher levels of phosphorus.

That would've been much easier.
 
Why didn't you just say that Mobil 1 is basically pulling the same thing that Shell did with the Rotella by giving it their MA rating but was based on "in house testing"... also they dropped the spark rating due to higher levels of phosphorus.

That would've been much easier.
ExxonMobil is not “pulling” anything. Try to understand, please.
 
I’ve been using 0w-30 esp in my parent’s and sister’s Subarus. I haven’t sent any samples in for analysis but just from the sound of things the engines do not struggle at all to turn over in single digit (Fahrenheit) temperatures. I want to say smoother cold cranking than any 0w-20 oil I’ve ever used but I don’t have proof to back that up.

GTL/PAO/Ester blend. Pour point of -51 C, one degree colder than Amsoil signature series 0w-30. It’s got some nice specs for an oil you can buy off the shelf at Walmart for $28 per 5 quart jug.
 
I know y'all keep saying one can't feel anything, but I swear it's smoother and the engine warms up faster. 🤷 As I said in the op, completely unscientific
 
Let me try again since I'm not sure what you are missing.

The suitable for use was my comment/opinion which was based on the fact that it exceeds API SP engine test requirements.
So its suitable for use in an engine where API SP oil is requested.

This is different from being an API SP oil.
m1 0w30 is clearly not API SP and never has been.

If you need an api sp oil with that on the packaging m1 5w30 esp IS an api SP oil that meets all the requirements of API SP.. not just the API SP engine testing.
I think he’s missing the distinction between the *chemical* requirements of a spec and the *performance* requirements of the spec.

What M1 is saying here is that the oil meets the performance requirements of the spec but because it doesn’t meet the chemical requirements of the spec, it cannot have the spec and will not say so on the API donut.

Wearing the donut means the oil meets chemical AND performance requirements of the spec AND was submitted for licensing and the license fee was paid.
 
I know y'all keep saying one can't feel anything, but I swear it's smoother and the engine warms up faster. 🤷 As I said in the op, completely unscientific
I’m with you.

The effect on my Odyssey of switching to VRP in undeniable. Not only can you see the cleaning action (see pics I’ve posted elsewhere by searching my name), but there is an absolutely unmistakable change in response and in MPG (3mpg on average improvement).

It’s significant enough I want to repeat the compression test I ran a couple years ago to see where it’s at.
 
I think he’s missing the distinction between the *chemical* requirements of a spec and the *performance* requirements of the spec.

What M1 is saying here is that the oil meets the performance requirements of the spec but because it doesn’t meet the chemical requirements of the spec, it cannot have the spec and will not say so on the API donut.

Wearing the donut means the oil meets chemical AND performance requirements of the spec AND was submitted for licensing and the license fee was paid.
Yes there are two parts to an APi license, an engine test and a bench test.
 
I’m with you.

The effect on my Odyssey of switching to VRP in undeniable. Not only can you see the cleaning action (see pics I’ve posted elsewhere by searching my name), but there is an absolutely unmistakable change in response and in MPG (3mpg on average improvement).

It’s significant enough I want to repeat the compression test I ran a couple years ago to see where it’s at.
A 3 MPG improvement for the same grade?
 
I wonder if I could use this as a "one-oil" usage for my 2025 KONA 1.6T and my 2024 CX-5 2.5T ( The KONA specs a 0w-20, but I am willing to overlook that)?
 
i don't blame you OP, i had tons of people on here telling me my toyota 2.5 arfe cold start rattle wouldn't change or get minimized by ANY oil and that i would have to fix the vvt components. engine calls for 0w20, i ran 0w30 afe and rattle was the same

then i went to 5w30 pup and it was essentially gone, i also tried castrol edge 5w30 and its even more silent

keep on enjoying your engine and oil selection op!
 
I think he’s missing the distinction between the *chemical* requirements of a spec and the *performance* requirements of the spec.

What M1 is saying here is that the oil meets the performance requirements of the spec but because it doesn’t meet the chemical requirements of the spec, it cannot have the spec and will not say so on the API donut.

Wearing the donut means the oil meets chemical AND performance requirements of the spec AND was submitted for licensing and the license fee was paid.
Meets SP performance versus meeting various MB , BMW & Porsche specifications … Which oil are you going to choose for the same price : M1 0W30 AFE or M1 0W30 ESP ?
 
Meets SP performance versus meeting various MB , BMW & Porsche specifications … Which oil are you going to choose for the same price : M1 0W30 AFE or M1 0W30 ESP ?
For me it's ESP and it's not even close. To me it's nonsense to dictate chemistry limits in a spec, especially one that results from a roomful of "experts" voting on something. It's as stupid as having rules like NFL QBs must be 6'4" tall at least (a rule that cause the Chargers to say goodbye to one Drew Brees, who it turns out could play QB at least as well as the taller Phillip Rivers who displaced him).


Absurd arbitrary limits are all around us, creating pretend differences of kind out of differences of degree. Yes, one could draw a line at 68F and say everything below it is "cold" and everything above it is "hot", but at the margin, 67F and 69F are only two degrees different. Yet the categorization implies they are as different as -20F and 120F, which also fall into the same separate categories.

Nature is analog and any perfectly round value is almost certainly manmade and arbitrary. This is why PI was discovered, not dictated. As was the golden ratio, Euler's number, avagadro's number, etc etc.

There is a place for abitrary limits-- mostly in politics. But in the apolitical arena of science and nature, limits should be discovered, not dictated.
 
Feeling something is one thing but ascribing that feeling to one isolated variable among a myriad is another.
In my case, the only thing that changed was the oil in the sump. I'm not arguing with you, more I'm trying to understand what about the finished product *could* produce noticeable changes in engine performance. Perhaps the cold flow performance? It seems as though the engine enters *warmed up* performance parameters much faster, especially on cold days, than it did with the previous oil selection.
 
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