|
I'm surprised, you do a comparaison of a constant speed of 60 mph to P&G between 50 to 60mph.
A basic mathematic say that the average with P&G is about 55 mph. So try P&G from 50 to 60 mph, then try the constant speed of 55 mph.
P&G is only working well with hybrids vehicules. It can also be useful in city when you drive without brakes between 2 crossroads. Glide is really usefull in many situations.
But on a long straigh line, with the same average speed than constant speed, the P&G is often worst (except with hybrids car, when the electric engine do the main work and the fuel engine work in her most efficient range).
|