We all know, that manufacturers recommend the oil change(Petroleum Oil) for Petrol Vehicles after 3000km because of their internal monopoly whereas experts advise to prolong this interval to 5000km. Foreign threads claim that this interval to 5000 miles but since we live in Pakistan so 5000 km sounds good enough to me because of dust issues.
How much can we safely prolong the oil change interval on CNG vehicles as Petrol which dilutes the oil but in CNG case that?s not the scenario.
Your comments will be appreciated.
(kindly stay away from CNG Vs Petrol Fight)