When did Holden introduce AFM?
January 2009
Holden Introducing AFM Technology On All Automatic V8’s In January 2009.
Do VF Commodores have AFM?
While Holden has offered Active Fuel Management (AFM) – or cylinder shut-down capability – with its 6.0-litre V8 engine since 2009, HSV has never offered the fuel-saving technology with its 6.2-litre V8. …
What does AFM stand for Holden?
Active Fuel Management
AFM, or ‘Active Fuel Management’, is Holden’s own brand of cylinder deactivation tech.
What is the AFM on my car?
Active Fuel Management (AFM) was a system GM engineers developed back in 2005 to help improve the fuel mileage from some of their V6 and V8 engine applications. AFM shuts off half of your engines cylinders to operate at a reduced power level to reduce fuel consumption when running in low load and cruise situations.
What does AFM mean on a Commodore?
AFM (or Active Fuel Management – the branding for the technology) is a running change for V8 automatic models only, and forms part of Holden’s Ecoline push that will include a range of alternative-fuel and fuel-saving technologies across its range. The ECU also shuts down the fuel supply to the same four cylinders.
How does l77 AFM work?
The system works on oil pressure. The hydraulic lifters on cylinders 1, 4, 6 and 7 collapse when oil pressure is fed to them by solenoid-controlled valves. It also means that if the AFM system becomes defective, the engine turns into an ordinary V8 – you won’t be limping home on four cylinders.
Can a GM dealer disable AFM?
General Motors’ DFM technology, also known as Dynamic Skip Fire, saves fuel by only using the cylinders of an engine that are required during the specific driving situation. If a V6 or V8 engine is just cruising down the highway, for example, it will activate DFM.
Does AFM save fuel?
To do this the AFM (Active Fuel Management) shuts down half of the engine’s cylinders during driving, for example during highway driving. However, the design is not without its flaws.
Which is better AFM or DFM?
When towing, accelerating or performing other strenuous tasks, the DFM system will remain off, giving the driver full engine power. DFM is the more advanced successor to AFM. Whereas AFM would flip between four and eight-cylinder mode, DFM shuts down certain cylinders based on the driving scenario.
Do all L77 engines have AFM?
Although the AFM/DOD engine was originally only paired with the Automatic Transmission (from 2008), its also found in the VZ Thunder Utes (L76), and all variants of the VE series 2 & VF Commodores (2010-on) in 6.0L are all fitted with an L77 engine, manual and automatic transmission.
Does L77 have AFM?
The L77 6.0L V8 offers Active Fuel Management (AFM) cylinder deactivation technology and FlexFuel capability, allowing it to run on E85 ethanol.
What does AFM stand for in Holden cars?
AFM (or Active Fuel Management – the branding for the technology) is a running change for V8 automatic models only, and forms part of Holden’s Ecoline push that will include a range of alternative-fuel and fuel-saving technologies across its range.
What is Holden’s new Active Fuel Management System?
This is the first independent, serious evaluation of GM Holden’s new Active Fuel Management (AFM) system. AFM is the first real environment/economy initiative from Holden since the Car-ocalypse nearly sent the big three American car makers to the wall. It passed, obviously.
How does Holden’s AFM cylinder deactivation technology work?
AFM – also known as DoD (Displacement on Demand) or Cylinder Deactivation – works by turning your regulation 6.0-litre V8 into a 3.0-litre V4 when a pre-defined set of low-load and other conditions are met.
What happens when AFM goes into V8 mode?
It’s a good arrangement because the default state for the lifters puts the engine in V8 mode. That means start-ups take place on eight cylinders, which is smoother (there’s no engine oil pressure on startup). It also means that if the AFM system becomes defective, the engine turns into an ordinary V8 – you won’t be limping home on four cylinders.