QUOTE(jackielya @ Jul 27 2019, 04:34 PM)
Agreed on the FC. I'm driving an auto variant. Going up and down from Genting to Subang used up about 2 bars only. That is speeding like those Genting Taxi drivers up and tons of engine breaking on the way down.
just to share information.https://www.roadandtrack.com/car-culture/a1...-than-coasting/
Tl-dr;
Engine braking conserves more fuel. (higher fuel efficiency)
Use engine braking whenever possible and never coast in neutral. For safety and fuel economy reasons.
You save lives (coasting in neutral is always not recommended as you may overheat brakes, you may not respond as quickly if you need to suddenly accelerate to swerve, your speed may be too high)
You save brake pads (engine braking regulates the speed for you. it's perfectly fine for the engine as long as you dun engine braking in the redlines)
You save fuels (fuel injector cuts off fuel while you engine brake)
Win-win
Long information:
Newer cars with will have fuel injectors cut-off fuel when detected engine braking / zero gas pedal depression when car is in gear.
As the tire is spinning and your transmission is engaged, the wheels will provide rotational force to keep the engine running, and thus, the engine can choose to shut off the fuel input until it detects it needs a little bit fuel where it will pump in a little fuel and continue to cut off after that.
If you leave your car in neutral, the car will assume you are stationary, and continue to behave as though you are idling on neutral even if you're speeding down the slope.
You may try this with any cars that have real time fuel usage indicator (like Jazz / City / Almera). Go down a slope. engage a lower gear and let engine braking do its job, then lift off the gas pedal. You will notice the fuel usage will drop to 0 and occasionally blip up and then back to 0 again.
I have tested this with my persona on routes that I often drive. If I engage higher gear, and brake during descending, or in neutral and brake during descending, the fuel consumption is actually more than if I engage a lower gear and utilize engine braking during descending.
P/s: also to add on, driving under load while outside of power band range, also consumes more fuel. Try performing a genting run while keeping your rpm around 2-3k vs 3-4k. If you're trying to accelerate or trying to go up hill or ferrying full load of ppl, always try to keep your car in the power band range (3-5k rpm). You will get better fuel economy. Low rpm is meant for cruising (maintain same speed at slight decline or flat road)
This post has been edited by tctham: Jul 30 2019, 10:34 AM
Jul 30 2019, 10:18 AM

Quote
0.0597sec
0.17
7 queries
GZIP Disabled