You can make your own Nmaes also. I made a Snow, Ice and Water material. The Terrain and Road sections I use it on has a material name of Snow, Ice and Water. And the tdf has.
// Water LVL5 //Water
[FEEDBACK]
Dry=RoadWaterGrip Wet=RoadWaterGrip Resistance=0.0 BumpAmp=0.00 BumpWavelen=0.0 Legal=true Spring=0.0 Damper=0.0 CollFrict=1.0 Sparks=0 Scraping=0 InsideColl=Secondary\splash_in OutsideColl=Secondary\splash_ex
Reaction=wetskid Tex=skidwet.tga Max=1024 Duration=0.40 Pixel=NoReduceDetail Particle=Plane+Deformable+SingleSided DestBlend=InvSrcAlpha SrcBlend=SrcAlpha
Reaction=spray Tex=rainspray.tga Max=1024 Scale=(0.3,0.05,0.6) Growth=(0.3,0.3,0.6) GrowthVel=(0.08,0.09,0.30) Power=1.0 RampSpeed=80.0 OffsetVel=0.10 ASDEnvelope=(0.05,0.07,0.90) DestBlend=InvSrcAlpha SrcBlend=SrcAlpha
Materials=wata
// ICE LVL6 //ICE
[FEEDBACK]
Dry=RoadICE Wet=RoadICE Resistance=0.0 BumpAmp=0.00 BumpWavelen=0.0 Legal=true Spring=0.0 Damper=0.0 CollFrict=0.5 Sparks=0 Scraping=0 InsideColl=Secondary\splash_in OutsideColl=Secondary\splash_ex
Reaction=wetskid Tex=skidwet.tga Max=1024 Duration=0.40 Pixel=NoReduceDetail Particle=Plane+Deformable+SingleSided DestBlend=InvSrcAlpha SrcBlend=SrcAlpha
Reaction=spray Tex=rainspray.tga Max=1024 Scale=(0.3,0.05,0.6) Growth=(0.3,0.3,0.6) GrowthVel=(0.08,0.09,0.30) Power=1.0 RampSpeed=80.0 OffsetVel=0.10 ASDEnvelope=(0.05,0.07,0.90) DestBlend=InvSrcAlpha SrcBlend=SrcAlpha
Materials=ICE
// Snow LVL7 //Snow
[FEEDBACK]
Dry=RoadSnow Wet=RoadSnow Resistance=1.0 BumpAmp=0.00 BumpWavelen=0.0 Legal=true Spring=0.0 Damper=0.0 CollFrict=1.0 Sparks=0 Scraping=0 InsideColl=Secondary\splash_in OutsideColl=Secondary\splash_ex
Reaction=wetskid Tex=skidwet.tga Max=1024 Duration=0.40 Pixel=NoReduceDetail Particle=Plane+Deformable+SingleSided DestBlend=InvSrcAlpha SrcBlend=SrcAlpha
Reaction=spray Tex=rainspray.tga Max=1024 Scale=(0.3,0.05,0.6) Growth=(0.3,0.3,0.6) GrowthVel=(0.08,0.09,0.30) Power=1.0 RampSpeed=80.0 OffsetVel=0.10 ASDEnvelope=(0.05,0.07,0.90) DestBlend=InvSrcAlpha SrcBlend=SrcAlpha
Materials=Snow