source from Toyota India BS6 Concept ( BHARAT STAGE 6) The main difference between BS4 and BS6 is a measure of supfar content BS4 ( 50 mg/kg sulfar) BS6 (10mg/kg sulfar ) are generated If you used BS6 fuel in BS4 vehicles will help in getting better emission,high sulfar content decrease the catalytic conversation capacity of a system,thus increasing the capasity of nitrus oxide,carbon monoxide. Higher sulfar content in BS4 fuel may result in increased DPF generation (Diesel perticulate filter) Emission result may be worse than certifite lab result Deterioration of three way catalytic in gasoline engines reducing the durability Major change the exhaust system it's are totally different compare between BS4 models Change in oxidation catalyst( additional the diesel perticulate matter is reduced the perticulate matter UREA SCR SYSTEM Urea SCR system are included to reduced NOX (SCR - Selective catalytic reduction BS6 models some new component which are use...