MPG

[Fazer Jake]

These people getting the high 50s/60s are you sure your doing the calculation right?
the fomulae is
(Miles) Divided (Litres in fuel) x 4.54 (Litres in a gallon)

At the absolute best i've achieved 54mpg since fitting aftermarket downpipes, K &N and a racing exhaust its dropped to 45-50

[Major Rant]

pretty sure the americans have their own gallon... the point of this I do not understand  [img alt=:lol]http://foc-u.co.uk/Smileys/efocicon/lol.gif[/img]

The problem is not with the US Gallon ... It is the UK Pint .
In the US, A pint of water weighs a pound (16 oz) ... simples! 
In the UK , A pint of water weighs 1,1/4 pounds (20 oz) ... for some Godforsaken reason :eek

In both countries there are 8 pints to a Gallon ...

Petrol now costs over a Guinea* per US Gallon.
(* generally, but not always, 21 Shillings or £1.05)

[Major Rant]

trying desperately to remember why a higher petrol RON rating for a motorbike was a waste of time and the relationship to engine knock,,,,

    Its because the sportsbike engine is designed to run with a 12:1 compression ratio and if you try and run it with a "stochiometric mix" (ie just enough fuel so that ALL the oxygen gets consumed) then the 'ignition temperature' is below the 'compression temperature' and the charge will ignite before the spark happens and your engine will run badly and eventually destroy itself.  Adding fuel to the mix makes the charge more reluctant to ignite - hence the spark happens first and the charge goes 'bang' at the right time but the extra fuel gets thrown away down the exhaust pipe. (Which is why a Honda 90 does 120MPG but a Fazer does 45MPG)  Some car engines (maybe 'most' by now) have knock-detectors that adjust the mix and frig about with the ignition-timing depending on what grade of gasoline you are using.  (all of the above is based on 10yr old knowledge when bikes had carbs, cheap cars had crude ECUs and posh cars had proper engine management systems. Its probably changed by now .) (By the way ... The new Ford 3 cylinder 1 litre engine is a wonder to behold ... check it out!  http://www.ford.co.uk/FordFleet/NewsAndR...ost-Engine)

[Freddie]

Last 2 fill Ups were 55.37mpg and 64.55 mpg, and definitely correct with the maths.

[redman]

Went for a 5 hour blast through Snowdonia and around north Wales last night got 57mpg and we werent goin slow according to the plod  top  sorry mr officer blah blah.

[Fazer Jake]

was Frugal with the throttle and managed 56mpg  still was doing 80ish mind

[JZS 600]

(By the way ... The new Ford 3 cylinder 1 litre engine is a wonder to behold ... check it out!

Know what, these greedy [email]b@$t@£ds[/email] could have done this years ago!

[born to be mild]

heres a thought, im sure that my fazer has a very optimistic speedo, would that also equate to the odometer? if so the MPG figures might not be quite as good. No idea if this is true, Im just old,crabby and cynical.

[fazernigel]

I decided to see what my Fazer was doing Miles Per Gallon and carried out a very scientific test to find out.

I rode from my house in Wiltshire to Blackpool to watch a football match which was 214 miles but when i did this i kept to the speed limit. This journey was 44 miles on fast A roads. The rest was all on motorway.

When i got to Blackpool i filled up and the managed to squeeze 14 litres in which was an average of 69.49mpg.

Later that day i rode home but this time i rode at 85mph all the way down the motorway as there was little traffic and then for the last 44 miles went for it a bit on the A roads.

Filled up and this time the bike took 18 litres which worked out at 54 mpg.

Just proves that the Fazer will return good mpg when ridden with a fairly heavy right hand and excellent mpg when riding with common sense.

[JZS 600]

Sounds about right to me on the commute vs thrap scale of MPG.

[red98]

good test fazer nigel...interesting to see the difference....bet the ride home was more enjoyable 

[Skinbeatersam]

This was the main reason I bought a Fazer, although for some reason the MCN website says it gets pretty greedy on fuel. Obviously they are wrong again. . . . .


Read the Overall Verdict [size=78%]http://www.motorcyclenews.com/MCN/bikere...998-2004-/[/size]

[Dead Eye]

Gotta love that MCN apparently cant do math... They list the avg. MPG as 55 with a tank capacity of 18 litres, all is good so far. Then they go ahead and list "Tank Range" as 130 miles... seriously?!

18 litres / 4.54 = 3.96 Gallons
3.96 Gallons * 55 Miles Per Gallon = 218 Miles

Obviously thats pushing the theoretical limits etc but where on earth did 130 come from!

[HarryHornby]

I commute daily on the bike and normally, when dry don't worry too much about MPG, I overtake on the single carriageway A2 and "keep up with traffic" on the dual carriageway A2 (80ish).

I fill up just after the light comes on and stick in £20/£21 woth of fuel on todays pricing.

For the last tank I made sure all aceleration was gentle, stuck to all speed limits, didn't overtake and did 60 mph on the dual carriageway, WOW, I couldn't believe the difference it made.

The petrol light normally comes on about 175 miles, but by driving like I've stated above it came on at 207 miles!  :eek

So I saved an extra day's commute in petrol, but boy was it boring, especially on the dual carriageway.

The upshot is, I'm going to try and do 2 commutes a week being good and 3 like "normal".  Easy while it's raining, that slow you down a bit anyway, but I doubt I'll be able to resist once the weather warms up and the roads are dry  :b

[DaxPlusPlus]

Just filled up my 03 Fazer for the first time (bought it last week) - managed to squeeze 20.18 litres into the tank. With a mpg of 55 that should equate to a 240 mile range before the light comes on again.

Will post results.

[Skinbeatersam]

I have had to use the cage a couple of times this week, and I am still so impressed how economical the bike is. Put £20 in the focus on Tuesday, it has gone already!! Didn't do a ridiculous amount of miles, just what I normally do on the Fazer on a Tuesday and Wednesday.

[ElkWorks]

interesting read, i did once hit 72mpg on thundercat, so if i cant get more than 60mpg on the fazer, i will be miffed!!!!

[69oldskool]

I must be getting old!

60mpg without trying, 65 taking it steady= possible 300miles a tank.
C'mon guys you've gota be seriously ragging it to get <50mpg? 

Tryed Super unleaded, engine didn't sound right so never again... have had good results with older vehicles though.
Maybe you need a different spark plug heat range to benefit the hotter fuel??

[ElkWorks]

picked my bike up saturday morning, filled back up this morning.

11.23 litres,
154 miles.

62.348 mpg. not bad considering there has been some thrashings, town riding, motorways etc.

Im now trying economy mode for the next two days before i need to refill, and i'll post results!

[jason1]

I commute 74 miles each day , mostly motorway and tank lasts two days if im heavy on throttle , but mostly 2half days before fill up . At a snails pace i have managed  three days on tank . Not for me tho , like to get where im going with a bit fun . :b fazer 600 98.