Bro, I agree, but you're not getting my point... the filter is actually just as or more important than the oil itself. Since our environment is dustier, it will clog up and become less efficient sooner than in places like the US, so it will restrict oil flow in a shorter time period. So we Pakistanis should ALWAYS change the filter with our oil, whether that's at 5,000km or sooner. Even if I were to run a 10,000km drain interval on my vehicle in Pakistan, I would still change the oil filter at 5,000km.