CU2 Fuel Consumption

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26-03-2009, 01:08 PM
buddah51au

CU2 Fuel Consumption

When i first got my CU2 Auto I said I would post my findings on Fuel consumption after 5,000km. I do believe you need to use several tanks of fuel to get an accurate average. These figures have been obtained using Caltex Vortex 95 RON exclusively. Also I have not included the first tank of fuel as it is very obvious that the dealer did not completely fill the tank. After 3 months here are the accurate figures as per my spreadsheet.

4,756kms - 351.28 Liters - Average = 7.39 l/100km.

I find the fuel consumption displayed on the trip computer reads about 0.4 under the actual consumption.

Low fuel warning light comes on after 800 to 825 kms, however when the light comes on it takes 63 to 64 liters to fill the tank, yet there is supposedly around 7 liters remaining in the tank when the low fuel light comes on. This leads me to believe that the total capacity of the tank is slightly over 70 liters.

Byt who would complain about 800km + per tank in day to day driving. These figures lead mr to believe on a long trip it would be quite easy to exceed 900km + per tank.
26-03-2009, 01:27 PM
denot

as usual, nice figure buddah!!!

my avg after 1600kms is 11.5L/100kms.

Yesterday I manage to get it under 10L/100kms after refueling on Tuesday. But this morning, I stuck in a bit of traffic jam, so its back to 11.7L/100kms atm... At the moment, my worst enemy is traffic jam... :(
29-03-2009, 04:54 PM
Type R Positive

I actually calculated my fuel usage on my last trip the Perth.
I filled up chockers when I got to Perth, to start my calculation. I spent 4 days vtecing around Perth, and then drove the 500kms home.
I got 7.04 L / 100kms. I would have easily cracked into the 6's if I stuck to the speed limit on the way home, and drove 'normally' around Perth...
29-03-2009, 05:34 PM
buddah51au

I have a best of 6.96 L / 100km over 1 tank after 784km. I have also seen as low as 6.2 registered over a short trip of 150km, which is the longest non stop trip I have done.
29-03-2009, 05:39 PM
Type R Positive

Yeah, that is absolutely awesome for an auto! Awesome for any car actually!
30-03-2009, 09:43 AM
denot

Man... cant wait to stop using my car to work... will have to for a time being... :(
30-03-2009, 09:50 AM
buddah51au

Wish I could give mine a rest as well Denot, typical day is 4 trips of 22.5km & that is for 6 days a week. cant wait to give it a loooooong trip though.
30-03-2009, 01:11 PM
Type R Positive

Quote:

Originally Posted by buddah51au

Wish I could give mine a rest as well Denot, typical day is 4 trips of 22.5km & that is for 6 days a week. cant wait to give it a loooooong trip though.

Back to Perth for me tomorrow! Another 500kms one way! :)
30-03-2009, 08:10 PM
buddah51au

The other thing i did is reset Trip B (on the trip computer) when i picked up the car. After 5,500km it is showing 7.0 although as i stated previously it is not 100% accurate. Maybe i should take a picture of it for future reference.
23-04-2009, 04:47 PM
buddah51au

People often say that it is impossible to match a manufacturers advertised fuel economy. The last thing I expected when I got my CU2 was that it would be as economical as it is. We all know that the trip computers are not 100% accurate, My spreadsheet tells me that the trip computer reads .3 less than true fuel consumption. Even with that in mind here is a picture I have just taken that I am sure most of you will find hard to believe. This is Trip B which was set on the day i picked up the car, a whole 2 lts/100km better than advertised.

http://i388.photobucket.com/albums/o...u/IMG_0031.jpg
23-04-2009, 05:09 PM
unity

Quote:

Originally Posted by buddah51au

People often say that it is impossible to match a manufacturers advertised fuel economy. The last thing I expected when I got my CU2 was that it would be as economical as it is. We all know that the trip computers are not 100% accurate, My spreadsheet tells me that the trip computer reads .3 less than true fuel consumption. Even with that in mind here is a picture I have just taken that I am sure most of you will find hard to believe. This is Trip B which was set on the day i picked up the car, a whole 2 lts/100km better than advertised.

http://i388.photobucket.com/albums/o...u/IMG_0031.jpg

Impressive figures. What petrol are you using?
23-04-2009, 05:56 PM
buddah51au

Always Vortex 95
24-04-2009, 10:30 AM
Dilan

I haven't reset my tripmeter since delivery and it has an average of 8.9L/100km. Mostly around town, 20% freeway. (Using BP ultimate)

Edit- manual and I am yet to measure consumption at the bowser!
13-05-2009, 09:05 AM
cdbstock

Buddah51au - Looking for a volunteer:-
Have a 2006 Euro Luxury auto.
Have major problem with excessive fuel consumption - app14l/100km
Having problem with Honda Aust - wont accept there is a problem even though have dyno & AFR chart indicating major AFR problem.
Need a similar Euro auto to compare dyno & AFR - I'll pay. Volunteer would help me determine if my car has poor AFR & get a free dyno & AFR chart. Can you help?
13-05-2009, 09:39 AM
denot

Quote:

Originally Posted by cdbstock

Buddah51au - Looking for a volunteer:-
Have a 2006 Euro Luxury auto.
Have major problem with excessive fuel consumption - app14l/100km
Having problem with Honda Aust - wont accept there is a problem even though have dyno & AFR chart indicating major AFR problem.
Need a similar Euro auto to compare dyno & AFR - I'll pay. Volunteer would help me determine if my car has poor AFR & get a free dyno & AFR chart. Can you help?

i think buddah has a CU2 not CL9 model...
13-05-2009, 09:59 AM
Type R Positive

Quote:

Originally Posted by buddah51au

Always Vortex 95

Interesting.... You say you have the ping now?
Have you tried 98? :confused:
13-05-2009, 10:02 AM
Type R Positive

Quote:

Originally Posted by cdbstock

Buddah51au - Looking for a volunteer:-
Have a 2006 Euro Luxury auto.
Have major problem with excessive fuel consumption - app14l/100km
Having problem with Honda Aust - wont accept there is a problem even though have dyno & AFR chart indicating major AFR problem.
Need a similar Euro auto to compare dyno & AFR - I'll pay. Volunteer would help me determine if my car has poor AFR & get a free dyno & AFR chart. Can you help?

Quote:

Originally Posted by denot

i think buddah has a CU2 not CL9 model...

I know he does! :p

To the op, add a CAI and exhaust to lean out the mixture! ;)
13-05-2009, 11:06 AM
MiSloVic

Quote:

Originally Posted by cdbstock

Buddah51au - Looking for a volunteer:-
Have a 2006 Euro Luxury auto.
Have major problem with excessive fuel consumption - app14l/100km
Having problem with Honda Aust - wont accept there is a problem even though have dyno & AFR chart indicating major AFR problem.
Need a similar Euro auto to compare dyno & AFR - I'll pay. Volunteer would help me determine if my car has poor AFR & get a free dyno & AFR chart. Can you help?

12-14l/100km for the CL9 auto is normal, if you are mainly driving in city stop-start traffic.
13-05-2009, 11:07 AM
denot

my CU2 auto is around 12-13.5L/100kms never hit 14. and 80% city driving on weekdays rush hour
13-05-2009, 11:17 AM
buddah51au

Quote:

Originally Posted by Type R Positive

Interesting.... You say you have the ping now?
Have you tried 98? :confused:

I haven't tried 98 RON, That would mean a 30km drive every time I need fuel instead of a Caltex station next door (Vortex 95 only sold there).

Really to me it is not a major problem, the pinging is only intermittent And hard to duplicate on a daily basis. Personally I can't see any advantage of using 98, Honda specify 95 and i am getting unbelievable economy from it...as of yesterday 8607km....629.12 liters....average = 7.31. I would like to see another CU2 Auto that can match those figures. I easily achieve 850km per tank with no sign of low fuel warning light.
13-05-2009, 11:22 AM
buddah51au

Quote:

Originally Posted by cdbstock

Buddah51au - Looking for a volunteer:-
Have a 2006 Euro Luxury auto.
Have major problem with excessive fuel consumption - app14l/100km
Having problem with Honda Aust - wont accept there is a problem even though have dyno & AFR chart indicating major AFR problem.
Need a similar Euro auto to compare dyno & AFR - I'll pay. Volunteer would help me determine if my car has poor AFR & get a free dyno & AFR chart. Can you help?

I don't know where you live, but i can be certain it is several hundred kms from me. On the other hand if you want to travel to this part of the country I would be more than happy to do an economy run for you so we can see if I can get close to the figures i get from my CU2.
13-05-2009, 02:43 PM
cdbstock

Thanks buddah51au - I'm in brisbane - but I've learned your euro is a cu2 - mine is a 2006 - cl9 I think - how do I tell?
13-05-2009, 03:57 PM
buddah51au

Quote:

Originally Posted by cdbstock

Thanks buddah51au - I'm in brisbane - but I've learned your euro is a cu2 - mine is a 2006 - cl9 I think - how do I tell?

CL9 - 2003 to 2008, CU2 - 2008 - . CU2 is bigger & heavier than CL9, totally new from the ground up

I am about 6 hours north of you straight up the highway, but will be in Brissy in the near future for spinal surgery.
26-09-2011, 10:58 AM
Raztaz

Quote:

Originally Posted by denot

my CU2 auto is around 12-13.5L/100kms never hit 14. and 80% city driving on weekdays rush hour

this thread has been a good read. This figure seems to be a bit overy highish :s Im doing 10.8L/100 in liberty GT-B in city / suburban driving.
26-09-2011, 11:53 AM
Type R Positive

I'm still averaging around 8's for mine!!! I love it, and I'm not a sedated driver either!!! My old CL9 used to get about 12's for the same type of driving.
26-09-2011, 05:22 PM
buddah51au

My overall average after 39,000km is 7.1 L/100km
30-09-2011, 06:49 PM
redseven

Around 7's on highway drives at 110 km/h, the car's got about 1000 km on the clock. For a big engine and relatively heavy car with a slushbox, it's pretty darn good :thumbsup: Now I get Honda's reason for sticking to a large displacement engine and VTEC when the other Euro manufacturers went for smaller turbo engines.