I used to run mobil 1. now i just use napa shit bc i get it free. When i start buying oil id like to try that shit that bizimoto came up with. cant remember the name of it but i used it to lube my bearing when i assembled my engine and i liked it.

Royal purple is not good for high milage engine. my friend put it inhis prelude and it started smoking. i think bc when it gets hot its viscoity drops too low and u get blow-by. u get power gains bc it doesnt bond to anything is my theory.

If u want to clean ur engine, just drop ur oil level one quart and replace it with trans fulid. Shit comes out blanging. Old master tech trick i learned from my professor.