Liqui Moly Special Tec AA 5W-30 ( 4L)Optimum for modern Asian and American gasoline engines with multi valve technology and turbocharging with and without charge air cooling. Especially suitable where there are long intervals between oil changes and heavy duty engine requirements. Modern premium class fuel efficient engine oil, which especially has been developed for the year round use in Asian and American vehicles. The combination of unconventional base oils using synthetic technology