oh piya hurn piya dasana wein ??gasket and rings ka kam hai pher to oil kam kare gi as oil gets mixed with coolant then mech is right
Mehran need only two oils. 10/40 & 20/50. That?s all.And shifting / switching is fine unless the car very very old.Give a try to PTT 20/50 or SIM3 and am sure you'll find them better than LM's 20/50.
Any final conclusion regarding mehran's engine @shah96 ??Bcz my mehran has same issue. Even its compression test is perfect