Fuel consumption - 100 miles to a tank!

This section is dedicated to the new Rockster version of the R1150R.

Moderator: Moderators

User avatar
zax1150
Basic User
Posts: 69
Joined: Thu Dec 07, 2006 5:11 pm
Donating Member #: 603
Location: London

Re: Fuel consumption - 100 miles to a tank!

Post by zax1150 »

ok tweetyoost ......
I use either the Brisk LGS design plugs or NGKR racing plugs because of electrode positioning
as I want direct fire of spark (high efficienty), not electrode spark distortion (less efficient)

I'll assume you replace all 4 plugs at the same time?
as most ppl tend to forget the lowers
your lowers should be of this type BKR7EKC-N of electrode configuration

I remember halo, but definitely prefer the game given the choice :badgrin:
Ride it like you stole it!!!

Bumblebee edition 80 :)
CorvuS
Basic User
Posts: 39
Joined: Tue Feb 26, 2008 2:29 pm
Donating Member #: 0
Location: The Netherlands

Re: Fuel consumption - 100 miles to a tank!

Post by CorvuS »

Yesterday i went on a trip with my good ol' dad. He's a good guy, but not what you would call a sportive driver.
We never exeeded the 100 km/hour limit and when i filled my tank today I tanked 10 liters (after 155 km) so that's about 1/15
I guess my driving style is the problem here.
Will try a less agressive style the upcoming week and check my new uh.. milage :)
Image
tweetyoost
Basic User
Posts: 12
Joined: Wed Nov 14, 2007 1:12 pm

Re: Fuel consumption - 100 miles to a tank!

Post by tweetyoost »

@ the persons with the high fuel consumption:

I don't know if it will affect the fuel consumption but how much oil consumption do you have?

I got a lot of oil consumption and will buy the next time 20W50 oil instead of 10W40 ..
CorvuS
Basic User
Posts: 39
Joined: Tue Feb 26, 2008 2:29 pm
Donating Member #: 0
Location: The Netherlands

Re: Fuel consumption - 100 miles to a tank!

Post by CorvuS »

Well, after about 4000 Km I added 0.5 l oil today. So that's not much for BMW i think
Image
tweetyoost
Basic User
Posts: 12
Joined: Wed Nov 14, 2007 1:12 pm

Re: Fuel consumption - 100 miles to a tank!

Post by tweetyoost »

nope...

I'm adding almost 2,5l on 4000km.. and that's a lot:p

I'm using castrol GPS oil.. I think I'm better of with 20W50
User avatar
Boxerpunk
Basic User
Posts: 169
Joined: Mon Jul 18, 2005 4:07 pm
Donating Member #: 0
Location: The Netherlands

Re: Fuel consumption - 100 miles to a tank!

Post by Boxerpunk »

tweetyoost wrote:I'm using castrol GPS oil.. I think I'm better of with 20W50
Try BelRay 20W50; in my case, the difference was huge (that means: my (well, my bikes) oil consumption reduced drastically)
Greetz, Erwin

2003 Rockster Full Black
tweetyoost
Basic User
Posts: 12
Joined: Wed Nov 14, 2007 1:12 pm

Re: Fuel consumption - 100 miles to a tank!

Post by tweetyoost »

I've heard allready of that brand BelRay but I don't know where to get it..

What's the price of it? and is it semi synthetic or mineral like most of the 20W50 oils..

I can get 20W50 mineral for about 22euro's > 4,5L from Duckhams.. (any reviews on this oil?)

I'm trying to do my oil change this weekend.. it's not normal like this and maybe my fuel consumption problem would also be solved.. (lets pray:p)
Beancounter
Basic User
Posts: 34
Joined: Sun Jan 07, 2007 2:12 pm

Re: Fuel consumption - 100 miles to a tank!

Post by Beancounter »

Hi folks!

This post is more just to record a polite response - I haven't had a chance to look through all the suggestions yet (mainly due to a lack of web time), but I will do and will report back soon.

Cheers,

Cam
:)
Beancounter
Basic User
Posts: 34
Joined: Sun Jan 07, 2007 2:12 pm

Re: Fuel consumption - 100 miles to a tank!

Post by Beancounter »

Well, it seems that the problem has been sorted. When I say sorted, I mean more like the problem isn't mine anymore 'cos some thieving pikey has nicked my bike. :evil:

I think my insurance co will now be telling me to bend over and take it dry. :shock: 8-[

I shall be taking bets on how long it takes to get a payout.
CorvuS
Basic User
Posts: 39
Joined: Tue Feb 26, 2008 2:29 pm
Donating Member #: 0
Location: The Netherlands

Re: Fuel consumption - 100 miles to a tank!

Post by CorvuS »

:shock: Omg bean.... :cry:
Image
User avatar
Boxerpunk
Basic User
Posts: 169
Joined: Mon Jul 18, 2005 4:07 pm
Donating Member #: 0
Location: The Netherlands

Re: Fuel consumption - 100 miles to a tank!

Post by Boxerpunk »

Not the most pleasant way to solve your problem !
Hope your insurance company is as quick as mine: had my second Rock exactly four weeks after my first was stolen...
(payout in 20 days)
Greetz, Erwin

2003 Rockster Full Black
tweetyoost
Basic User
Posts: 12
Joined: Wed Nov 14, 2007 1:12 pm

Re: Fuel consumption - 100 miles to a tank!

Post by tweetyoost »

damn, why..

My update:

I've changed my oil to 20W50.. but still no luck.. 150km.. (100miles) and green light..
CorvuS
Basic User
Posts: 39
Joined: Tue Feb 26, 2008 2:29 pm
Donating Member #: 0
Location: The Netherlands

Re: Fuel consumption - 100 miles to a tank!

Post by CorvuS »

Found a gasleak. Can't see it dripping but there must be a minor leak in my fuel lines i think. Will replace them as soon as i have time to do so.
I think the fuel consumption problem is caused by this leak.

Will update in a few.
Image
duke
Lifer
Posts: 353
Joined: Sun Jan 08, 2006 12:41 pm
Donating Member #: 568
Location: And the bike is long dead :-(

Re: Fuel consumption - 100 miles to a tank!

Post by duke »

I also get 95-105 miles to the tank ... on city-only riding.
Considering the 8 miles-only trip, 16 miles round, constant start-stop, hanging at traffic lights for 1/4 - 1/3 of the time.
And it it does not help if you fancy yourself as drag-racer from traffic lights.

I do not ride often enough out of town, but for sure consumption is better then.
User avatar
m@rco
Basic User
Posts: 65
Joined: Mon May 01, 2006 4:56 am
Donating Member #: 0
Location: Amsterdam

Re: Fuel consumption - 100 miles to a tank!

Post by m@rco »

Good old topic but with new members commenting again... Am I getting old?

In winter, in-and-around city traffic I usually only get as good as 13.5 km to the liter. My car can do better than that... In summer, on vacations in Dolomites for example, despite a somewhat :roll: agressive driving style, I do average around 1:17. I found out that highway driving (at speeds over 120 km/hr) kills your average. Accelerating wide open out of hair pins 8) , driving with a pulling engine running at 5000rpm etc. does burn some fuel, but strangely enough, I've never managed to drive more economically than in the mountains...

On average I am happy with 1:15.
Last edited by m@rco on Tue Apr 29, 2008 4:52 am, edited 1 time in total.
Rockster Ltd
CorvuS
Basic User
Posts: 39
Joined: Tue Feb 26, 2008 2:29 pm
Donating Member #: 0
Location: The Netherlands

Re: Fuel consumption - 100 miles to a tank!

Post by CorvuS »

1:15 seems to be quite good :S

I fixed the gas leak and added cleaner for the injectors tru my fuel but still i get 1:15 when cruising.
After a bad week at work (wich tends to change my driving style slightly) i got only 1:14

I'm going for the chip tune soon. See what they can do for me.
Image
User avatar
m@rco
Basic User
Posts: 65
Joined: Mon May 01, 2006 4:56 am
Donating Member #: 0
Location: Amsterdam

Re: Fuel consumption - 100 miles to a tank!

Post by m@rco »

...make it worse ;)
Rockster Ltd
User avatar
single650
Basic User
Posts: 145
Joined: Fri Apr 21, 2006 6:20 am
Donating Member #: 0
Location: Bedford (ish)

Re: Fuel consumption - 100 miles to a tank!

Post by single650 »

Could be one of the primary coils (the central plug caps) have failed - they do that a lot.

Disconnetc the secondary plugs and see if the bike is running on both cylinders (Put an old plug in the secodary cover and touch it to earth to protect the ECU). If its not swap over and check the fault moves.

This is a common fault and uses oodles of gas
'03 R1150R Rockster
'94 K75s
Post Reply