I've been towing an ASW-27 and others behind 2.5 l Subaru Foresters normal aspiration for several years and thousands of kilometers.

Manual transmission is better than automatic which will downshift to second at 80 km/h if you push a tiny bit hard on the gas + the auto can't really make up its mind on upgrades.

Do check the oil at every gas stop. Inflate the tires to maximum allowed pressure.

DO NOT tow 2-place gliders.