Lets get some facts straight and involve some math
Performance wise theres not much difference between liquimoly n shell (my personal opinion, have tried both)
Mileage wise i wont be able to comment now, as this was the first oil change in my current car.
Liqui moly Rs 4,500 ..... good for 7000-10000 km
Shell Rs 2,500 (dont know the exact price) .... good for 6000 km (shell waale say 8000km t chalao bt anyways)
Engine oil must not be used for more than 6 months.
You ll drive around 10000 km in 6 months
So you have the option of..
- Shell .. Local .. cheaper in short term .. 2 oil changes .. 2 filter changes .. 6 months
- Liquimoly .. Imported .. cheaper in long term .. 1 oil change .. 1 filter change (cx i know har koi oil filter engine oil k saath change krwata hai :P) .. 6 months
So choice is urs, whatever suits u my frnd