Liqui moly 1040 gear oil additive 20g liqui moly 1040 p align left this gear oil additive 20g from liqui moly is ideal for reducing wear and reduces temperature peaks allowing quieter running softer gear changes and energy conservation specially developed for manual and differential transmissions even older transmissions run more quietly with increased efficiency due to the smoothing effect on tooth surfaces p liqui moly 1040 gear oil additive 20g