i have experienced that castrol activ is best oil for honda cd 70,, very good result,,, aur yeh koi matter nai ha keh havoline jb change krta hn tu bht thinner ho jata ha,,, jb bike kfi garm ho ge tu jo b oil ap chech kro ga wo thin he feel ho ga,,ap 1200 per liter wala Mobil 1 b agar bike may dal dan ga tu jb bike bht garm ho ge tu oil thin he feel ho ga. havoline 20w50 API SG is also good oil.