cruise control = fuel saving ?

[rugbyken]

i’ve always thought as per title that the fuel economy would improve using the. cruise control but today i have pulled a shift driving 372 miles on the french motorway in 7 hours due to the lack of traffic and my willingness to pay tolls it was fairly painless approx £90 , what i did notice was on the long. climbs and subsequent free wheeling that the cruise is still impacting the freewheel ie normally on any downwards trajectory the dash normally registers 99.9 mpg with cruise control on at the most berserk rate it still only reads 34mpg? is the cruise still controlling the engine rate

 

[wildebus]

i’ve always thought as per title that the fuel economy would improve using the. cruise control but today i have pulled a shift driving 372 miles on the french motorway in 7 hours due to the lack of traffic and my willingness to pay tolls it was fairly painless approx £90 , what i did notice was on the long. climbs and subsequent free wheeling that the cruise is still impacting the freewheel ie normally on any downwards trajectory the dash normally registers 99.9 mpg with cruise control on at the most berserk rate it still only reads 34mpg? is the cruise still controlling the engine rate

Maybe (if an auto?) the gear dropped to provide engine breaking rather than essentially coasting? I think I have noticed similar as well.
I tend to use Cruise Control to rest the right foot mainly

 

[Trotter]

Interesting, your comment on using toll roads..
I’ve used French tolls, due to the COVID nonsense we experienced a few years ago. I’d never considered it as a financial benefit. Compared to French N roads, they can be bl**dy tedious. But would you think that in regards to the costs of mpg vs toll fees be worthwhile?

 

[rugbyken]

my ferry tolls and fuel at £400 were cheap compared to using the long ferry & from dieppe i got here same day someone who would have left at the same time on the bilboa ferry would have done , of course there is no comparison on using the route nationals but i hate bloody roundabouts and the french seem to have an obsession with them , so save £100 in tolls take couple of days longer and fight 200 roundabouts no contest

 

[Pudsey Bear]

Roundabouts and bleedin raised crossings did my head in, but I loved the small towns and villages.

 

[Trotter]

my ferry tolls and fuel at £400 were cheap compared to using the long ferry & from dieppe i got here same day someone who would have left at the same time on the bilboa ferry would have done , of course there is no comparison on using the route nationals but i hate bloody roundabouts and the french seem to have an obsession with them , so save £100 in tolls take couple of days longer and fight 200 roundabouts no contest

Cos I had nuffin else to do, I checked the Portsmouth Bilbao route. For me , the van and a cabin, over a grand.
In the words of our late Queen. “Sod that “.

Thankfully, my hurry up and wait days are far behind me now. I’m content to bumble along now.

If I can get away again this year, I’ll try the Dunkirk trip, just like my late Dad did, a few years ago. Although, hopefully I won’t get my feet wet, like he did.
I fancy seeing the autumn colours in the southeast of France. And putting off the winter just a bit.

Stay safe Ken

 

[Pudsey Bear]

We go the Dunkirk route, and get the VIP lounge and just enjoy the ride, no screaming kids, and waiter service all in the price, a mini cruise and as near as I ever want to be to one.

 

[marchie]

Cruise control seems to use a heavier throttle setting to maintain the constant speed, whereas, using manual, lighter throttle, I can let speed drop slightly on the incline, maintain the light throttle on the level and descent [backing off entirely on the latter], and the backing off lets the 99.9mpg reading appear. I don't use cruise control on the M/Home now.

Steve

 

[Pudsey Bear]

I like CC, very useful in 50mph road works, sadly only had it on one van.

The car has ACC, you have to be very careful where you use it though, as the fecker brakes hard at ghosts.