Bro Mera Ek Sawal hy ap Sy Mery cultus hy 2007 model mainy 6 month phly purchase ki thi us main phly sy qabli 1300 cc baleno wala engine lga hwa hy.engine main phly 20.50 oil use kia mainy 1 bar .phly pta ni knsa grade use hota rha hy.main ab us main 10.40 dalna chta hn .phly 5000 km chal Chuka oil to thk hy bilkul engine work average wagira na Kam hwa na koi or issue.to ab gari main oil ka grade change kr skty hain?20.50 sy 10.40.