Dear i am using castrol magnatec 10w-40 which run very well upto 4500km after that it trun into dark yellowish.
But some people say that, it is not original oil, Is it so??
While i checked its fully seal pack and its seal is very strong. it required great force to tore the seal and made in uae is printed on the bottle.
While i also used Zic A 10w 40 which trun into dark yellowish after 2700 kilometers and qulaity is low then magnatec.