Aoa guys ,i start this thread bcoz i need a useful advice not a debate on engine flush so please must comment with helpfull advice, recently i flush my cars engine after alots of positive reviews of liqui moly engine flush shuru mai sub sahe tha pick acceleration mai improvement thi n kabhi 1st mai engine knocking kerta tha wo bhi almost khatam hogai hai but fuel average bohot kum hogaya hai tank(45ltr) mai 350km kerahe hai phailay around 500 550km kerti thi car 2012 gli n 36k mileage hai