Ideal RPM for Max Fuel Efficiency

saurabhkum · 15th August 2007, 11:28

Dear All,

Can you all please advice on what should be the ideal RPM range in which the car should be driven to maximise fuel efficiency. Some people say changing gear at 2000 RPM gives maximum fuel efficiency while some say to shift gears at 3000 RPM. Pls advice .I'm asking this for Accent 1.5.

Thanks
Saurabh

ravibhat · 15th August 2007, 19:38

What I heard and saw is ideal RPM is 1500 to 2500 and speed is 50 to 70kmph we can get maximum FE on smooth roads.

Regards,

Ravi.

mobike008 · 15th August 2007, 21:05

Quote:

Originally Posted by saurabhkum

Dear All,

Can you all please advice on what should be the ideal RPM range in which the car should be driven to maximise fuel efficiency. Some people say changing gear at 2000 RPM gives maximum fuel efficiency while some say to shift gears at 3000 RPM. Pls advice .I'm asking this for Accent 1.5.

Thanks
Saurabh

Is it a petrol? Some of the following helps you in maximising the FE:-

Changing gears between 1500rpm-2000rpm
No clutch riding
Regular tyre pressure check ( mebbe once a week)
Avoiding spurts and bursts stops and starts
Last but not the least, ensuring the petrol/diesel is filled up from a reputed bunk

maranellored · 15th August 2007, 21:50

cld someone mention the same for a Swift Vdi ?

danlalan · 15th August 2007, 23:06

i change at 2000 to get the best for me. Though it doesnt make much of a difference for the ikon cause it drinks like a bull anyways..but normally 2500 should be ideal..

theMAG · 15th August 2007, 23:08

Ideal RPMs might differ based on engines and their sizes. Speed would be a better indicator for optimum mileage I feel.

Nimz · 16th August 2007, 00:36

Ideal RPM for FE depends on the engine. This is the RPM where the Air Fuel mixture is the leanest and usually midway between idling RPM and Max RPM.

Ideal RPM for a peppy drive is the rpm around which the torque maxes out.

Nimz

IronWolf · 16th August 2007, 01:18

This has been discussed on another thread already. I cannot find the link at the moment. Anyway from what I gather from that and personal experience the average consensus is to keep engine between 1500 - 2500 ish rmp.

Trying to accelerate at around 1000 rmp would only burn more fuel so its important to be at the right rpm

Mugen_Power · 16th August 2007, 01:23

For Accent i think if you change gears between 1500 - 2000 rpm and keep car running in 1500 - 2000 rpm it will give you max fuel efficiency.

15th August 2007, 11:28	#1
saurabhkum BHPian Join Date: May 2007 Location: Mumbai Posts: 479 Thanked: 115 Times	Ideal RPM for Max Fuel Efficiency Dear All, Can you all please advice on what should be the ideal RPM range in which the car should be driven to maximise fuel efficiency. Some people say changing gear at 2000 RPM gives maximum fuel efficiency while some say to shift gears at 3000 RPM. Pls advice .I'm asking this for Accent 1.5. Thanks Saurabh
	() Thanks

15th August 2007, 19:38	#2
ravibhat Senior - BHPian Join Date: Jul 2006 Location: Bangalore Posts: 2,250 Thanked: 37 Times View My Garage	What I heard and saw is ideal RPM is 1500 to 2500 and speed is 50 to 70kmph we can get maximum FE on smooth roads. Regards, Ravi.
	() Thanks

15th August 2007, 21:50	#4
maranellored BHPian Join Date: Aug 2007 Location: Secunderabad Posts: 30 Thanked: 22 Times	cld someone mention the same for a Swift Vdi ?
	() Thanks

15th August 2007, 23:06	#5
danlalan Senior - BHPian Join Date: Nov 2005 Location: mumbai,JUHU Posts: 1,639 Thanked: 281 Times View My Garage	i change at 2000 to get the best for me. Though it doesnt make much of a difference for the ikon cause it drinks like a bull anyways..but normally 2500 should be ideal..
	() Thanks

15th August 2007, 23:08	#6
theMAG Distinguished - BHPian Join Date: May 2006 Location: Avon, CT Posts: 7,196 Thanked: 1,821 Times View My Garage	Ideal RPMs might differ based on engines and their sizes. Speed would be a better indicator for optimum mileage I feel.
	() Thanks

16th August 2007, 00:36	#7
Nimz BHPian Join Date: May 2007 Location: Bangalore Posts: 593 Thanked: 200 Times View My Garage	Ideal RPM for FE depends on the engine. This is the RPM where the Air Fuel mixture is the leanest and usually midway between idling RPM and Max RPM. Ideal RPM for a peppy drive is the rpm around which the torque maxes out. Nimz
	() Thanks

16th August 2007, 01:18	#8
IronWolf Senior - BHPian Join Date: Jun 2007 Location: Benga-loo-ru Posts: 1,569 Thanked: 45 Times View My Garage	This has been discussed on another thread already. I cannot find the link at the moment. Anyway from what I gather from that and personal experience the average consensus is to keep engine between 1500 - 2500 ish rmp. Trying to accelerate at around 1000 rmp would only burn more fuel so its important to be at the right rpm
	() Thanks

16th August 2007, 01:23	#9
Mugen_Power Senior - BHPian Join Date: Oct 2005 Location: Gujarat 03 Posts: 1,302 Thanked: 19 Times	For Accent i think if you change gears between 1500 - 2000 rpm and keep car running in 1500 - 2000 rpm it will give you max fuel efficiency.
	() Thanks