Sifus,

Got a question here. According to the manual, after 10,000km service the next should be 20,000km right? but but when I did mine, the guy wrote on the sticker that next service would be at 15,000km. I only realize this when my mileage reach 17,000km. and then when I checked the receipt the oil used was 10w-40 which is semi-synthetic. Can sifus here recommend me what to do? change oil now or change later when I go for 20,000km major service?