A co-worker has a 2004 Dodge Stratus, 2.4L, 4 cylinder. He has had it only 4 months, but drives 90 miles round trip for work, so approximately 2000+ miles per month. He wants to be economical on costs and keep the car a long time. His neighbor works on cars and told him that the engine in those cars is not very good so he should change the oil every 2500 to 3000 miles. I think the neighbor has given him bad advice. Maybe in general, but in Jim's case, with the miles he drives and mostly highway, I think he is a prime candidate for synthetic (or a blend) and longer OCIs. However, economy must be considered. I think the car takes 10w30, but he lives out from the city a bit where it can go maybe -10F occasionally in winter. Summer temps usually in the 80s 90s. He is unlikely to do UOAs, but is willing to change his own oil (has been going to the dealer) and if he changes it, then less frequent changes is good. Besides oil recommendations, how about filters. I say Purolator Premium Plus.