The ACEA B4 performance requires an outstanding detergent and dispersent power with a better viscosity increase resistance due to soot produced by Direct Injection Diesel engines
The API SL standard is more stringent than API SJ in terms of ageing resistance (average drain interval increased), requires anti-oxydation properties that maintain a constant viscosity avoiding sluge and deposits in the crankcase, anti-wear properties and dispersent power.
The reinforced synthetic base stock provides very high lubricating power which reduces friction, decreases the volatility and ensures resistance to very high temperatures reached in modern engines.
High viscosity at high temperature (SAE 50) is fully adapted to engines prone to oil consumption.
Very efficient anti-deposit additives keep the engine clean.