Sludge Protection For Greater Reliability It protects against problems like sludge caused by severe driving conditions and it’s an excellent solution to the problem of fuel dilution usually associated with old engines. It is suitable for use in older generation normally aspirated and turbocharged petrol and diesel engines where the manufacturer recommends an API SG/CF 25W-50 lubricant. It is suitable for use in automotive petrol and diesel engines where ACEA C3, API SN or earlier specification.
