Is there a way to apply the shallow water slowing effect to vehicles on tiles other than water?

[Maoman]

I'm trying to make two vehicles, one that's real fast on pavement but terrible offroad, and one that's slower on pavement but isn't slowed down at all offroad. The second one's easy, just set the terrain_friction_modifier to like 0.1. However, the first vehicle is not being slowed nearly enough, even with the modifier set to 1.0, the highest it will allow. So I want to have any tile other than the various pavements apply the shallow water slowing effect to the vehicle. Is this doable?

[Osmo]

I don't think there is anything special about shallow water, you can just set vehicle_friction_modifier on every tile that can't be placed from an item

[Maoman]

Oh, can I set that one higher than 1, as high as I need it? That's perfect then.