Quote Originally Posted by Phased View Post
Unfortunately Mobil 1 is a Group III as well. I hope you're getting it on sale otherwise you're paying $100 for a overrated Group III. . Mobil 1 in Australia hasn't been Group IV for a couple of years!

Analysis Test Proven and My Personal Fav's (Which of course reflect analysis', lol):
Track: AMSOIL Race Oil (Group IV) OR Motul 300V/Redline/Royal Purple (Group V)
Spirited Daily: AMSOIL PAO (Group IV)
Daily/Runabout: FEO/Castrol Edge (Group II/Group III)

Anyone confirmed that the FEO Ultra is Group III. It's highly likely due to the price, I doubt Honda would sell a Group IV at that price. Not to mention that there are not many manufacturers that produce Group IV/V anymore. Not mass marketed ones anyway. Besides maybe Motul 300V (Group V).
I don't think Castrol (if they are the producer) produces 5w30 in using group IV base.
The only Castrol edge sport product that uses group IV are 0W/40 & 10W/60, rest are group III based

The wording "Fully Synthetic" no longer means anything post 1999 "Mobil vs Castrol" court case when the knucklehead judge ruled in favor of Castrol (hence why I dislike Castrol with a passion, they ruined everything)
So when I saw the word "Fully Synthetic" and then a Castrol star on the cap? NO chance in hell I'm gonna use that.

I HIGHLY doubt the Honda 'ultra' is group 4.
unfortunately Mobil 1 is a Group III as well.
Just like The Castrol Edge, not ALL Mobil 1 are group III, but unlike Castrol, Mobile don't use all group III or group IV in their oils... At lease in USA and Europe
Mobil 1 (normal) is mostly group III base (except Mobil one "gold" 0w-40), Mobil 1 Extended Performance (US only product) is a mix of Group III and Group IV (I remembered it's more group IV than group III due to stability over longer term...) from an analysis I saw some time back.
I'm 90% sure Mobil 1 'gold' 0-w40 is group IV however

I reckon this whole "Honda researched" oil is just marketing gimmick.
A liquid engineering lab costs billions of dollars, whats the chance Honda actually builds such a lab, just to design oil for a few types of vehicle and boats? When they cant even sustain a F1 team?

I reckon Honda sub-contracts the oil design/production to Castrol (ie: Honda Rep to Castrol rep: "Here's the spec sheet from our R&D, go make it... or if it's similar to your Castrol edge... just put it in a different bottle.").

I looked into Honda Corporation and all their business lines and all the research and development info, no where does it say they have anything to do with petroleum engineering.
Just think about it, if Honda really has it's "Own" lab... won't they market to death about it?