i had a feeling it would be this one,replace it on emergency measure, to whoever told you to get this very oil in your car tell them to refund or keep it for themselves. this is extremely harmful for your car not just because of viscosity but because of its api rating its API SF! not for use for any engine after 1988, i woundnt use this in mehran even. get rid of it asap its obsolete and cause serious damage. its intent for classic cars and i have seen people use it in motorcycles but no car after 1988.
people try to suggest anything just to get rid of it you should take this oil back to where you bought it and get a refund. show them its api rating.
toyota petron is API SH which is also obsolete and their petrol plus is API SL which is better but you car requires API SM at the very least. SN will work as well
see this chart
http://www.api.org/~/media/files/certification/engine-oil-diesel/publications/mom_guide_english_2013.pdf