'96 Silverado vs 2009 Outback

[Piotrsko]

From the test tech point of view: until you start getting data from various elements, everything is conjecture.

However: tires on the subie inflated to above 25psi?

[vteco]

Tires are properly inflated.

Engine is turning a consistent 1500 RPM with foot off gas after topping hill and heading down. Idle is normally half that. The engine sounds like a downshifted standard transmission with clutch out. Speed does not increase going downhill. The feeling of engine braking is palpable.

Theory is a nicer and more science oriented word than conjecture.

My theory is that there is engine braking going on in a pedal-off downhill coast.