Quote:
Originally Posted by Dzmitry
RToyo quoted it above.
|
I don’t speak Japanese nor want to take that single little picture out of context.
The us manuals are very specific to what they say.
The other manual you linked I believe is from either older year cars and/or other markets still does not say 5w-30 is recommended. It still recommends 0w-20 and still says if unavailable then 5w-30 (later changed to 5w-20) can be used by you must fill with 0w-20 the next oil change.
Also now that i look more into why would they deliberately go out of there way to change the user manual from 5w-30 to 5w-20 as a less than ideal but still usable backup option? Did they get futher data and testing indicating they where wrong initially and it should have never been listed as an “option” that its actually too thick for normal applications.
To me it seems like one weight (0w-20) is recommended and another weight (5w-20/30) is optional.
“If it's recommended, you ought to include it if it's at all reasonable, and failure to do so will weaken your application. If something is optional, you should only include it if it will strengthen your application, or confirm an already positive impression made by other parts of your application.”
I don’t believe 95% of dailies warrant the need for heavier oil.
People say 5w-30 is better because it’s thicker and provides better protection, ok why not 10w-40 or 15w-50 then? Is it not thicker and therefor better? No its too thick? Ok how is that too thick but 5w-30 isn’t too thick.
What dictates and decides what the optional thickened or viscosity is?
Are all these people on here just chemical engineer oil analyst experts? Or are they all just repeating what everyone else says and continues the old train of thought about heavier oil weight is always better?