how about AERO SHELL OIL?
bACK IN 1983 WHEN I RODE \\; MY 1000 CC SPORTSTER, I worked with a old man that rode a 1960 something moto-guzi, he said he used nothing but \\; aero shell air-cooled oil. to which I  \\;tried &\\; it made that sportster run quieter &\\; and felt like it had more \\; power. never saw any ill effects after 70,000 miles. now i have 2008 EG ULTRA. mighty fine RIDE that just got 500 miles &\\; I need to rejuice the vitals. (AERO-SHELL is a aviation type oil). to which everyone has a opinion, to which i can't decide which way to go, mobil or amsoil, aero-shell, or purple. any thoughts?
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