RAVENOL DW-1 Fluid is a fully synthetic automatic transmission fluid made in Germany based on the PAO (polyalphaolefins) with the special set of additives and inhibitors which ensure continuous automatic transmission operation. RAVENOL DW-1 Fluid is used for Honda automatic transmissions. Check the OEM number! Application. RAVENOL DW-1 Fluid ensures: Very good lubrication properties, even at low temperatures. Stable high viscosity index. High oxidation stability. Long-term protection from wear, corrosion and foaming. Constant friction coefficient. High thermal and oxidation stability. Excellent cooling capacity.