Does using cruise control really save gas?

No.

yes

I would think so since your at a constant speed whatever your 12 o’clock position is. Plus acceleration uses more gas.

Yes, it keeps you from unintentionaly slowing down and speeding up. it takes very little force to keep an object in motion because it wants to stay in motion. when a car is moving at a constant speed the only force you have to overcome is friction of air and the road, which is a very small force compared to overcoming an object at rest wanting to stay at rest.

yes it actually does,it keeps the car at a more accurate speed,rather than giving it gas manually it keeps it at a more stable speed,and this helps save a lot of gas,but never use it on steep grades or going down hills,it can become dangerous at times,basically use caution when using it,be on a good road,good luck ,hope this helps.

Yes, that will be your fifth gear, low revolutions, thus the word “cruising along>>>>>>, driving on freeway etc.
You would hardly hear engine running. Try it out!

In general, an automatic transmission functions less efficiently than it might when there are large changes in either engine speed or road speed. A cruise control keeps road speed constant and this keeps engine speed pretty regular (but not quite constant). Cruise control has been designed to keep road speed constant, with little attention to engine speed because it is considered safer to other vehicles in traffic if everyone moves at the same speed. This is an engineering compromise.

Cruise control enables a driver to forget about maintaining that constant speed. A person who’s always very attentive to his vehicle’s speed could perform the same function, but few drivers want to be quite that attentive. An average driver, especially one engaged in conversation or complex thought about things other than driving will often slacken on his driving (leg) muscles, resulting in an unintended loss of speed. This could be dangerous. A driver engaged in an argument could tense his leg muscles, possibly speeding up without intention. This could also be dangerous.

Cruise control will aid in driving economy for most drivers.
Cruise control will achieve greater than average economy if the driver selects an economical speed instead of the “speed of traffic”.

There are speeds that are “most economical” for each gear in any vehicle. Experience with a vehicle may be a help in choosing one of those speeds.
For example, your car may be most economical in 2nd gear at 24mph, in 3rd gear at 37mph, and in 4th at 49mph. Such a choice might be less safe than is ideal.

It can save money but you look at the travel routes you going to take? If it’s a lot of hills you made not want to use the CC

yes it does.

Yes, but mostly on flat land. If you are going up hills, it will accelerate all at once and actually waste gas.