I have used DAP 230 with good results. I think the Dicor products are more RV specific in their uses but they are more expensive and not as readily avaialble as the DAP products. If your a purist go with the Dicor. If you need something quick a little DAP will do you,
1992 Fleetwood Jamboree Rallye 24' M/H
Ford E350 Chassis, 7.5L Engine, E40D Transmission
My other motorhome is a 1978 Catalina 25 Sailboat
Cruising Califonia, Sailing the Pacific!