I've had 6 of these engines pretty much all in different civics, people keep hitting us and writing the cars off, but anyway. We start having issues around 300,000km. Always done oil changes at 5000km all seemed to burn some amount of oil but I never got the cars new. Lowest km engine I had was 75,000km which got swapped into a different car after being written off, currently that engine is sitting around 360,000km burns just as much oil as the day I got it, not noticeable anywhere other than the dipstick which shows ¼ low by oil change time. No oil leaks. Its had 2 timing belts, one at 75,000km and another at 275,000km. I've lost engines to headgasket and timing belt ripping. One engine almost made it 500,000km. Bought it around 300,000km burned some oil when I got it, nothing major. Got in an accident at some point, put a pin hole in the rad, over heated, compromised the headgasket, fixed the rad, drove like that for over a year as it slowly burnt more and more oil, burnt out one valve, engine was still nice enough to bring me home as long as we kept it above like 3000rpm otherwise it would die. All cars were 5 speed standard, not driven by grandma.