Speed vs. mpg/mileage/fuel economy chart - Mirage 1.2L 5-spd and CVT

[MetroMPG]

"Shaking like crazy" = lugging.

[Cleartec]

Lugging is when it sends strong vibrations through to the chassis like you mention.

ohh exactl I dont let my engine lug(rumble), for the shake is just because of the small engine, so the car's weight take over the engine and shake like on waves... I don't let it rumble/lug

[Cleartec]

"Shaking like crazy" = lugging.

no no no no no... I meant creazy shake like on waves due to small engine and heavy body. Feels like the car ride some waves from times to times when I start from standstill... But I shall just let the engine run smooth no rumbling, right? thanks

[CESARG]

It is very confusing, my engine's RPMs with a CVT on the highway doing like 65-70 mph are @ around 2100-2200 RPMs VS. like 3200 RPMs using a 5 speed equipped Mirage at the same speed..... There is no way that the stick shift is going to do better MPGs on 60+ MPH highway cruising with way more engine load....

[wellswebdesign]

It is very confusing, my engine's RPMs with a CVT on the highway doing like 65-70 mph are @ around 2100-2200 RPMs VS. like 3200 RPMs using a 5 speed equipped Mirage at the same speed..... There is no way that the stick shift is going to do better MPGs on 60+ MPH highway cruising with way more engine load....

I think the key is that engine RPM is not the same as engine load. Take this example: You're in gear (MT or CVT), downhill, off the gas, at 3,000 RPM, but using no fuel. This is (someone please correct me if I'm wrong) an example of DFCO (deceleration fuel cut off). The the potential energy becomes kinetic energy, transferred through the wheels and transmission to the engine, which would cause the pistons to move (without fuel being supplied).

[Tyrelirwin]

I average 5.3L/100km on the highway at 120km/h. I do this 6 days a week for my 100km each way commute. My car has over 100,000kms on it, and I still average the same. It drops to 6.3L/100km with my winter tires on, however. All these measures are by my car's output.