Sir main to Havoline use kar raha hu shuru se jab se Pakistan ayi hai gaardi, Alhamdulillah no issues
ZIC aur Havoline may original oils jitne hain sab ache hain
Grade ya to 20w-40 hoga ya 20w-50
Koshish karke Semi-synthetic ya Synthetic use karein that oil has good viscosity as per these 660cc engines and our city conditions