AMSOIL Signatures Series 5w-30 Phosphorus Levels

[kschachn]

So here we have HPL saying essentially the same thing I am saying AMSOIL told me, and everyone applauds HPL and questions me. This is textbook cognitive dissonance. This is not about AMSOIL’s product. This is about all their marketing.

Are you saying that you feel everyone on this board is against you?

 

[RazorsEdge]

So here we have HPL saying essentially the same thing I am saying AMSOIL told me, and everyone applauds HPL and questions me. This is textbook cognitive dissonance. This is not about AMSOIL’s product. This is about all their marketing.

I'll keep using Amsoil and HPL regardless of the rambling you are currently doing.

 

[Big_B]

The specs on Amsoil 5w30 look pretty stellar to me. Oxidation of 60= serious amount of esters.
This ain't no Walmart shelf special.
I really like their Signature Series 15w40 diesel oil with a HTHS of 4.5.

 

[Glenda W.]

All of your questions have been answered from your original post. You even said you mistakenly thought Amsoil SS was API certified. Amsoil never claimed it was and gave you the same answer as HPL. So what is the problem? You made the mistake, not anyone else.

 

[Brian123]

A few years ago I was running AMSOIL Signature Series 5w-30. I was mistakenly under the impression that it met API SP. When I found out it did not, I called AMSOIL technical support to find out why. Tech support told me without equivocation that AMSOIL strongly disagreed with the API on certain parameters and max phosphorus (ZDDP) was one such parameter. They told me they didn’t believe an oil could provide adequate protection at the current levels, so they had more anti wear additive than allowed, hence no API cert. Sounds good right? Well, those phosphorus levels were set to protect against catalytic converter poisoning, so maybe not on a holistic level. Now I have seen AMSOIL Signature Series 5w-30 VOA’s all over the place the last few years, in terms of phosphorus. Some show phosphorus in the 630 ppm range and some in the 850+ ppm range. Does anyone know what the testing for API consists of in regards to max phosphorus? Is the manufacturer required to submit so many random samples for analysis, etc.? Has anyone else received the same info from AMSOIL tech support?

Here is what is interesting, Amsoil has this Website where you can look up the so-called data Bulletin and see everything, you did not look up to see what you wanted to see, that is not AMSOIL's fault, that is your fault. Amsoil has, cannot count the number, it must be a few of their oils that are API SP. I think API SP is a joke, realize that specifications are the minimal, and Amsoil is not going to follow them in their best line of Oil. Who has your best interests, some guys doing the API Spec thing, or Amsoil that produces a top-of-the-line oil that is better. The API Spec thing is a minimal spec.

I will put this another way, who makes Kohler's 10W-50 Motor Oil for their Lawn Mower Engines, look it up, and get back 2 us?

 

[Astro14]

Time for a break. The back and forth bickering is doing nothing to answer the original question.