I have always been one to change my oil every 3k. I always use conventional oil, havoline or vavloline. I have read alot to persuade me to go longer, for example my Honda recommends every 5k. I have no doubts that oil can handle 5k BUT Sometimes it takes me 5-6 months to hit 5k on my cars. I have 2 cars and a motocycle, between the 3 the mileage doent rack up on just one, its spread out. Since oil becomes acidic and the longer it sits, the crappier it gets. How long is too long for oil change even it it has low miles?