Sorry for asking the same question again but mechanic ustaad suggestions are confusing.
Brother going to change my oil tomorrow Insha ALLAH,
Now as u know my engine condition, Sleeves with standard piston size,model 2006
driven on petrol and cng both, ,
I should go for Shell 10w-40 ,15w-40, or 5w-30 ? or caltex ? (Not going for Zic A/A+, as u told me so)
for gear oil will go for Zic ff,
Moreover how to figure out OIL Pump is good or not ?