Wow. What a tough audience. Some members here gnash their teeth and wring their hands looking to save a couple of bucks on an oil filter, but aren't interested in saving money on gas. (OK, sarcasm switch now turned OFF.)
My Canadian-spec 2019 DCT Tour has the Idling Stop function. The default setting is Idling Stop is OFF.
Do I use the Idling Stop function? No, because 99.9-percent of my riding is long distance touring. Idling Stop saves you the most gas (and money) in stop and go city riding, where you are constantly stopping and idling.
Do i like Idling Stop? Yes! I have it enabled on my Audi A4 which gets used 60-70-percent in city driving. Does it make sense to be sitting at a red light and sit there burning gas going nowhere? Not to me.
Does Idling Stop save you money? On a motorcycle, it's arguable, as they are relatively fuel efficient to start with.
But in a car or truck it's a different matter. Some time ago, British auto show 5th Gear tested a 1.4-litre Opel with Idling Stop to measure fuel savings, if any. They reported the manufacturer said Idling Stop would save about 10-percent in fuel use. They ran a route with Idling Stop OFF, then ran the same route at the same time of day with Idling Stop ON. They used 10-percent less fuel with Idling Stop ON.
One of the bike mags (perhaps a Canadian one?) reported that Honda said U.S. Wings would not be equipped with Idling Stop because they didn't believe U.S. buyers would want this feature. This thread pretty well proves them right.
Look, the U.S. has among the cheapest gasoline in the Western world, so fuel costs aren't a big deal for many Americans, and even to us in Canada where our gas prices are higher than yours.
Finally, to those who are opposed to Idling Stop because of the belief it's hard on starters, don't you think the engineers have thought of that and built it into build/reliability specs. And Idling Stop technology has been in use in cars and trucks for years now.
Tim