First, the Forester must be a manual transmission model. Automatic transmission models cannot be towed with all four wheels on the ground.
Second, the Forester must have a tow package installed. This package includes a special transmission cooler and a heavy-duty hitch.
Third, the Forester must be towed with a tow bar that is specifically designed for use with a Subaru. A tow bar that is not properly designed could damage the Forester's transmission.
Fourth, the Forester must be towed at a speed that does not exceed 60 miles per hour. Towing the Forester at a higher speed could damage the transmission.
Finally, the Forester must be towed for no more than 1,000 miles at a time. Towing the Forester for a longer distance could damage the transmission.
If these considerations are taken into account, the Subaru Forester can be safely towed behind a motorhome.