How do you brake when approaching red light?

[Kelpie]

I find almost everyone been doing option 1. You leh?

 

Regards,

[Lab4games]

roll to traffic light hoping it turns green... if doesn't turn green then brake as late as possible.

[Ev0lutionz]

Coast in Neutral if i am driving manual.. let it roll, if turns green before i reach stop line, put it in right gear then continue driving on. If auto and not my car, shift to neutral and coast. If my car, just release gas and let it roll..

[Thypig33]

check if behind got car, if no car, and still have around 100m, i will brake slowly until 20kmh and cruise to trafficlight. I heard if start from 0-20 drink more petrol...

[Malcolmc]

whats the diff, shifting and not shifting to neutral?

[Ev0lutionz]

Heard it damages the transmission if shift too much.

[Babyt]

u dont need to shift neutral for auto lah...if so, might as well buy manual car.

[Thypig33]

i think only for auto cars, manual cars wont have this problem i guess, switching into neutral will not have the engine brake? if clutch in all the way i guess might work, dun drive manual for ages already

[Ev0lutionz]

Me wanna save petrol.. but then i heard the fuel injection will be cut off when the throttle is off no?

[Nazaki]

blip and downgear? kidding.

 

no la. roll and reach traffic light ba.

[Xmenfreak2]

For me i prefer to go down gear and then keep a little speed and if possible not to press brake I will.. so that can save on my brake pad and also makes me more alert coz i am on gear...

[Rtth84]

downshift one gear, let it roll and brake until car almost stop, just before that small jerk release the footbrake.

 

my vehicle manual says when in gear and throttle is not depressed, engine is not injecting any fuel. must be in gear.

[Kyojin]

fuel injection only cut off when ECU senses deceleration (more vacuum in engine brake mode). if not, the ECU will see it as idle mode and still supply fuel as if the car was sitting still.

 

auto cars usually don't have this function as the transmission does the selection of gears and it doesn't apply engine brake.

[Dh15]

Coast in Neutral if i am driving manual.. let it roll, if turns green before i reach stop line, put it in right gear then continue driving on. If auto and not my car, shift to neutral and coast. If my car, just release gas and let it roll..

 

If auto car and very bo liao while approaching red light, i will shift to 2nd gear, den first gear. Engine braking will kick in when u do that. I do that with my car sometimes. Bro u meant cruise and not coast if i am not wrong?

[BMW320i]

Fuel injection will not cut off on deceleration.

 

If fuel injection is cut off, the engine stalls the moment IDC becomes 0%.

 

I think you are refering to idle IDC%.

 

Fuel maps for deceleration is only responsible for necessary fuel delivery through out all rpm range. IDC% increases when engine load increases when TPS sends signal to ECU pending on throttle opening.

 

I think he might be refering that shifting to N while cruise to a stop enables the engine to operate at idle as compared to engine speeds peg towards the speed of the car and hence saves fuel.

[Slayer]

Heard it damages the transmission if shift too much.

 

next time dun buy that car lor. :)

[Tohto]

Coast in Neutral if i am driving manual.. let it roll, if turns green before i reach stop line, put it in right gear then continue driving on. If auto and not my car, shift to neutral and coast. If my car, just release gas and let it roll..

 

No matters manual or auto gear, crusing in neutral is always not good as there is not engine brake..

[Robin]

take my foot of the gas & roll to a stop