http://www.mobiloil.com/USA-English/MotorOil/Files/Acura_RDX_Mobil_1_Brochure.pdf
As we have seen over the last few months, companies have been challenging M1 on the Seq IVA wear test. From the Mobil 1 brochure, only one other oil passed the test and it was PP. Mobil 1 also showed outstanding results from the Renewable Lubricants brochure on the industry standard TEOST test. With that said, I think Mobil 1 is great for high temperature applications, but in stop/go driving under low load, low temp (many people), it falls a bit short.
For the HTO-06 spec, someone posted awhile back that Royal Purple was "working towards it". Amsoil only approved one oil for the HTO spec, their SSO. Edge and Synpower both do not meet the HTO spec.(yet) CP came out with a specific oil just for the Honda spec.
Formulation often requires trade-offs. I posted awhile back an email Roy Howell sent me.
Quote:
There are always trade-offs in engine oils, and we try to enhance antiwear and friction reduction at higher temperatures and loads, while trying to maintain performance at lower and normal loads and temperatures.
Regards,
Roy
Claiming superiority based on one test is clever marketing. The issue though is whether Mobil 1 was really passing this test, which is part of meeting the base api specifications. Honda's new spec came out about 2 years ago, in 2006, which is when Ashland began to notice Mobil 1 failing the Seq IVA wear test. This according to jobbersworld's article from Ashland.
If your car does not see extended drain intervals and high temperatures, synthetics like Mobil 1 probably offer little advantage over conventional oils. I think most of us have seen enough UOA's to agree with that statement. Especially on certain tests like the Seq IVA.
As we have seen over the last few months, companies have been challenging M1 on the Seq IVA wear test. From the Mobil 1 brochure, only one other oil passed the test and it was PP. Mobil 1 also showed outstanding results from the Renewable Lubricants brochure on the industry standard TEOST test. With that said, I think Mobil 1 is great for high temperature applications, but in stop/go driving under low load, low temp (many people), it falls a bit short.
For the HTO-06 spec, someone posted awhile back that Royal Purple was "working towards it". Amsoil only approved one oil for the HTO spec, their SSO. Edge and Synpower both do not meet the HTO spec.(yet) CP came out with a specific oil just for the Honda spec.
Formulation often requires trade-offs. I posted awhile back an email Roy Howell sent me.
Quote:
There are always trade-offs in engine oils, and we try to enhance antiwear and friction reduction at higher temperatures and loads, while trying to maintain performance at lower and normal loads and temperatures.
Regards,
Roy
Claiming superiority based on one test is clever marketing. The issue though is whether Mobil 1 was really passing this test, which is part of meeting the base api specifications. Honda's new spec came out about 2 years ago, in 2006, which is when Ashland began to notice Mobil 1 failing the Seq IVA wear test. This according to jobbersworld's article from Ashland.
If your car does not see extended drain intervals and high temperatures, synthetics like Mobil 1 probably offer little advantage over conventional oils. I think most of us have seen enough UOA's to agree with that statement. Especially on certain tests like the Seq IVA.