Auto FE - It's all about driving style

[malherbe]

Use neutral as much as possable, stop-lights, down hills and prior to stops. Use the big gear. 28 city 35 highway 99 passat epa 21/31

[theholycow]

Originally Posted by malherbe

Use neutral as much as possable, stop-lights, down hills and prior to stops. Use the big gear. 28 city 35 highway 99 passat epa 21/31

When you're not interested in reducing speed, neutral makes sense because it won't drag your speed down. When you want to reduce speed, use enough engine braking to trigger DFCO (if your car does DFCO).

It's commonly thought that higher RPM == more fuel usage, but does it if you're not stepping on the gas and the road is turning the engine (but, for whatever reason, not in DFCO)? Would the engine need to inject the same volume of fuel more often for more RPM, or it can it inject less fuel? Can anyone answer that definitively? I will when I eventually get a ScanGauge.