engine braking fuel consumption

[XTO]

engine braking say 2500 rpm and acceleration with same rpm. do they consume equal amount of fuel? thanks

[theveed]

accelerating uses up more fuel but use engine braking sparingly, brake pads are much cheaper than engine parts hehe.

[GlennSter]

brake mainly with your pedal.

support lang ang engine brake, imho.

[Skywalker]

engine braking say 2500 rpm and acceleration with same rpm. do they consume equal amount of fuel? thanks

Sa old school diesel engine that uses injection pump, palagay ko pareho nga kasi ang dami ng fuel ay depende sa rotation ng injection pump.

Pero mas mainam pa ring iwasan ang engine braking depende na lang kung talagang kailangan like long down hill or nawalan ka ng preno.

[acenie]

Sa old school diesel engine that uses injection pump, palagay ko pareho nga kasi ang dami ng fuel ay depende sa rotation ng injection pump.

Pero mas mainam pa ring iwasan ang engine braking depende na lang kung talagang kailangan like long down hill or nawalan ka ng preno.

Engine Braking is good When you are in down hill.

[vinj]

As long as you keep the rpms low the fuel consumption shouldnt be much different IMO... was basing this on our car with a VDO gas flow meter before (sayang can't find those anymore).

I'd go with Glenn says, brake mainly with the brakes pedal but keep the engine in gear with some rpm to assist the brakes (since the engine provides vacuum for the brakes).

[IIE]

? nakakatipid nga ba ng fuel yun?

[geode]

question lang ... how bout sa highway? do you always keep your foot on the gas pedal? ako kasi pag nasa past 100kph na ko i just lift my foot to slow down back to the legal speed limit. that's engine braking di ba? madalas ko gawin un pag nasa highway ako eh ... kasi ayaw kong palagi nasa gas pedal paa ko.

[Alpha_One]

question lang ... how bout sa highway? do you always keep your foot on the gas pedal? ako kasi pag nasa past 100kph na ko i just lift my foot to slow down back to the legal speed limit. that's engine braking di ba? madalas ko gawin un pag nasa highway ako eh ... kasi ayaw kong palagi nasa gas pedal paa ko.

The best way of cruising down a highway is to maintain a constant 80-100kph (generally the cruising speed that gives best economy). Acceleration uses up fuel, and decelerating just throws away any kinetic energy you use during acceleration. In other words, maintaining a constant speed is good for your pocket!

[XTO]

Sa old school diesel engine that uses injection pump, palagay ko pareho nga kasi ang dami ng fuel ay depende sa rotation ng injection pump.

Pero mas mainam pa ring iwasan ang engine braking depende na lang kung talagang kailangan like long down hill or nawalan ka ng preno.

thanks, same analysis too. fuel is burned everytime there's a revolution.