Hi every one. Well its time for an ol change on my nsx and so i'd like to know what kind of oil should i be using. The guy that had the car before me used RED LINE synthatic oil. Is this oil any good? and should i usse it again? Also i'd like to change the oil on my own. I went under my car and its seems simple just like any other car, abolt and an ol filter. Is this rite? or i am mistakin. Last but not least my pasenger side speaker is not working and i think its cus of the amp. Can any one in seattle area or near by fix it? thanks mustafa.