Hi all, I'm using Mobil1 and will probably stay with it considering I just spent $27.88 for a oil/filter change at Walmart. Apparently they use bottled oil and the choice is yours for whatever kind. I watched them shortly and they seemed professional as oil change people come.(I feel guilty but reg. mechanic charges $60 for this). Anyway I have a 95 Civic (202,000 miles). I have used 4-5k oci in the past on dino. Is 6 months/7.5k oci pretty safe with Mobil 1 (normal conditions/dino/in Civic manual). I know people go longer and some shorter but it seems they do an oil analysis. Driving conditions are rarely city just mostly rural highways/roads. thanks for insight. ps. it seems based on posts people are dumping Mobil 1 but at $27.88 how can you go wrong.