With the aero of a brick, it's hard to get the mighty 6.4 L to go into
cylinder deactivation mode, especially with the 70 - 75 mph speeds common of our SoCal roadways.
Buyers can also opt for a 5.7 - liter Hemi V - 8, which comes equipped with a four -
cylinder deactivation mode and Fuel Saver Technology.
And the new Hemi V8 doubles down on the economy front with a V4
cylinder deactivation mode that kicks in seamlessly when cruising the straight and level.
Not exact matches
For instance, adding
cylinder deactivation required a move to a steel torque tube instead of aluminum, because V - 4
mode generates low - frequency resonances that only a steel torque tube can smother.
Aside from a very lovely windmill farm, this is perhaps the least exciting stretch of highway in the Midwest, so I get into the right lane, set cruise control to 77 mph, put the Corvette into Eco
mode, and let
cylinder deactivation turn the V - 8 engine into a V - 4.
A so - called Bentley
mode splits the difference between Comfort and Sport, and
cylinder deactivation and a new auto stop / start system help draw a road trip - friendly 72 - mile increase in cruising range from the 22.5 - gallon fuel tank.
In part because of its fuel - saving
cylinder -
deactivation mode, the Charger Pursuit V - 8 can return up to 26 mpg on the highway.
The Hemi's
cylinder deactivation system has been reworked to provide more torque in four -
cylinder mode, allowing the engine to run in that manner more often.
A special display on the instrument cluster states whether the
cylinder deactivation system is in use and whether the engine is presently operating in the four - or eight -
cylinder mode.
Yes, the R8 Spyder is capable of speeds approaching 318 km / h (197 mph), but thanks to
cylinder deactivation and an automatic coasting
mode has also bettered fuel economy over its predecessor by 10 percent; the new car averages 11.7 L / 100 km.
Nevertheless, the
cylinder deactivation program shuts down four
cylinders under light loads, with AMG claiming it's available between 1,000 and 3,250 rpm with the transmission in Comfort
mode.
Among the initiatives are a commitment to developing mild - hybrid technology and expanding the company's two -
mode hybrid program; new six - and eight -
cylinder gasoline engines, including the application of
cylinder -
deactivation in a V - 6; dual - clutch transmission technology; a common axle program; and weight reduction, aerodynamic and drivetrain initiatives.
Despite the weight and the W12 engine, Bentley are quoting official economy of 22.1 mpg and emissions of 292g / km, thanks in part to stop - start,
cylinder deactivation and a «Sail»
mode — but in the real world, especially if you use the Bentayga's performance, you might struggle to make double figures.
Clogged oil passageways can diminish engine oil pressure and prevent the
cylinder deactivation solenoids and lifters from operating as they should when switching from V4 to V8
mode.
Advanced technology features unique to the Stelvio Quadrifoglio include a four -
mode Alfa DNA Pro selector with Race
mode, torque vectoring differential, Quadrifoglio - tuned adaptive suspension, Quadrifoglio instrument cluster with 330 kilometre per hour (kph) speedometre and a
cylinder deactivation system to maximize fuel efficiency.
The same engine can also be had with a more sophisticated
cylinder shutoff setup called dynamic fuel management (DFM), which GM says allows 17
modes of
deactivation, though it doesn't provide details.
* 2019 Silverado will have six available engines * New 2.7 - liter turbo four -
cylinder will aim for efficiency * Eight - and ten speed transmissions will be available * V8 models will have 17 different
modes of
cylinder deactivation
It has a
deactivation mode where it can run on half its complement of
cylinders.
Those four drive
modes: advanced efficiency, which ensures low - rpm gear shifts, a slower throttle and use of the powertrain's available
cylinder deactivation; normal, the default setting upon start - up; dynamic, which loosens up stability control and speeds up throttle; and race — yes, race — which turns stability control off and holds on to the lowest gear possible.
The new trucks maximize the use of
cylinder deactivation with improved engine mounts, electronic throttle control, adaptive exhaust systems, improved aerodynamics, low - rolling resistance tires, and other technologies that help the engines operate in four -
cylinder mode for longer periods of time, further increasing efficiency.
With the new gearbox and seamless Active Fuel Management
cylinder deactivation system allowing the engine to operate in eight - or four -
cylinder modes, the drivetrain combo is estimated to return 14 mpg in the city and 21 mpg on the highway.
But the 1.4 TFSI with
cylinder deactivation, which decommissions two of these in partial load
mode, is not only strong and smooth, but also very economical.
Advanced technology features unique to the Alfa Romeo Giulia Quadrifoglio model include a four -
mode Alfa DNA Pro selector that adds Race
mode, torque vectoring differential, high - performance Brembo six - piston front and four - piston rear brake caliper system, Quadrifoglio - tuned adaptive suspension, Quadrifoglio instrument cluster with 200 mph speedometer,
cylinder deactivation system, Blind - spot Monitoring, Rear Cross Path detection, vehicle alarm and 35 - watt bi-xenon headlamps offering auto - leveling technology, adaptive cornering and headlamp washers.
GM wanted to maintain
cylinder deactivation on the LT4, and a traditional torque converter helps dampen the vibrations that accompany the transitions between V8 and V4
mode.
Surprisingly, our four - door crew cab delivers 20 - mph highway thanks to Chevy's
cylinder deactivation and fuel management systems, which allow this «Beauty and the Beat» dynamo to run on the highways in less than 8 -
cylinder mode.
Chrysler wrote that: «The new Phoenix of V - 6 engines will feature
cylinder deactivation (MDS)... the engine will operate efficiently on three
cylinders when less power is needed, and in V - 6
mode when more power is needed.
The engine features
cylinder deactivation technology, which allows it to automatically switch to a fuel - saving four -
cylinder mode under low or moderate loads.
Driving a 650 - hp super car in Eco
mode sounds pretty lame (wait until they hear it was an automatic) but the LT4 is one of the first supercharged engines with
cylinder deactivation so we gave it try.
A, or Advanced Efficiency takes Natural
mode and combines it with
cylinder deactivation.
Further aiding the engine in keeping fuel consumption to a relative minimum is the inclusion of a new
cylinder deactivation system, while both an ECO start / stop function and gliding
mode have been carried over from the prior - generation G63.
Cylinder deactivation, ECO start / stop function and gliding
mode are on.
The all - new 2019 Silverado 1500 offers six engine and transmission combinations, including an all - new 2.7 L Turbo, and V - 8 engines with industry - first Dynamic Fuel Management offering 17 different
modes of
cylinder deactivation
Over half of the models will be equipped with the most advanced V - 8s in the brand's history: updated versions of Chevrolet's proven 5.3 L and 6.2 L engines equipped with industry - first Dynamic Fuel Management featuring 17 different
modes of
cylinder deactivation.
But that same engine can deliver a surprising 30 miles per gallon on the highway thanks to new technologies such as direct injection and
cylinder deactivation, the latter letting it operate in four -
cylinder mode when power demands are light.