sidewayzpimpn
Member
i got a dual cam ka 5speed and i live in homestead and drive all the way to hollywood everyday. i use royal purple 20w-50 with a mobil 1 filter and when i drive i start off with great oil pressure like at 76psi at 3k. but when im reaching homestead i get to about 59psi. i know it loses viscocity and it drops but is that a safe enough pressure to drive on the highway. should i change oil to castrol or mobil1 and is 20w-50 ok with the KA. Thanks for any advice:bigthumbu