Approved Mercedes engine oil meeting the mb 229.5 engine oil specification is listed here. The mb 229.5 specification is for fuel economy engine oil for even longer oil change intervals (vehicles froom 2002 onwards) with service indicators. Special, stricter requirements than ACEA A3/B3. For use in all petrol and diesel engines. These engine oils also comply with mb 229.1 and mb 229.3 specifications.