hi ive always used mobil one had a 88 z28 and i drove it hard and i mean hard i had compression test done and at 190k it was as new i bought a kia spectra ive used mobil one from day one as well at 95k engine oil is like new now im a big fan. theres alot of info here what is best oil for my car price being no option ? what about filters whats top filter out there thanks for help