Do you have a fuel efficient bike?

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Bonjour79 said:
I ride a BMW F650cs ...

...eventually would like a bigger bike but I would hate to pay way more in gas.
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Bit of a disconnect between paying a premium price for a BMW, then worrying about gas prices.

Future bikes will likely all be GDI, and sprocket change can really lower fuel usage, as most <1L bikes are geared to generate performance numbers., and spin too high on the highway.
The F650S has horrible aerodynamics.

A bikes the new CBR500 series (F,X or R)produce the same power, but have crazy good fuel economy, on regular gas.
 
09 Ninja 250r, typically get 320-340km out of a tank filling with regular. I fill it just as the needle is ready to touch empty so I know there's still a bit in there. Would like to stretch it to just under 400km sometime, I do hear it's possible..
 
2005 FZ6;

Lower: 3.65 L /100km
Upper: 6.25 L /100km
Avg. : 5.10 L /100km

When you compared it to VW Jetta Hybrid or TDI, no it's not efficient at all.
 
My ninja 300 gets about 4.0L/100km routinely. I could get better if I rode a bit easier on it, but that wouldn't be quite as much fun.
 
On my K75C, I've managed 335 kms (about 208 m) before hitting the reserve light. Estimate she would have done just about 365 kms (about 227m) to bone dry. At 16 litres before reserve, that would be 20.9 kpL/59.1 mpg (4.77L/100km). That's best-case, steady cruising at about 110 kmh for the entire tank. My average highway mileage is a bit worse than that, maybe about 18-19 kpL. In town, my milage is worse, usually about 15.6 kmL (6.4L/100km).

Not bad for a 27-year old 750 cc bike.
 
4.8L/100km when commuting. Drops to 4.3L/100km when touring. '05 DL650 wee-strom

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Bonjour79 said:
I have a sticker on my fuel cap saying to use octane rating 91. I always wondered why it requires premium.
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RON, MON or (R+M)/2? 91 RON required is actually regular at the pumps.

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My bike specs 87 but I am currently in the process of switching to 91 because I want the tank ethanol free during the winter. 91 in Ontario does not have ethanol. 94 does however.

If you do this, be attentive to how you fill up. If you select 91 behind a car using 87, you will fill half your tank if not all of it, from 87. Some places like Costco use extra long hoses. Might be better to bring a container and your car. Run 10 L into the car and then the rest into the container and fill the bike at home.
 
2011 BMW F800r is very fuel efficient. Small under seat tank, but getting 4.2 L 100 and getting over 300 k on 12 liters of premium. The tank supposedly holds 16L but have never been able to put more than 13 liters in.

However have seen as low as 250 on very spirited rides but still can fill up on every second gas stop when riding with a group of SS bikes.
 
I believe I get 200km on 15L
Gsxr 750
 
My 97 HD road king 1340cc Efi, can be as poor as 10 L /100km ,,, turning fuel into noise at the twist of the wrist! .. but I generally get 5.2 - 5.5L/100km
 
Oh and I forgot to mention. The reason the BMW's demand premium is because they're specced to European octane standards, which are higher than ours. It's not that they want "expensive" gas, they're just designed for a higher octane standard. That's all "premium" really is anyway, just higher octane gas (maybe with a few extra detergents). It's not really "better" so much as a different rating.
 
I can squeak 300km on 15 litres with a couple left but once it gets over 110 actual I push so much air it drops to 220-250 :(
Sweet spot is 90-100 actual - most Burgman 650 riders report 45-50 mpg.
 
Mongrel said:
Oh and I forgot to mention. The reason the BMW's demand premium is because they're specced to European octane standards, which are higher than ours. It's not that they want "expensive" gas, they're just designed for a higher octane standard. That's all "premium" really is anyway, just higher octane gas (maybe with a few extra detergents). It's not really "better" so much as a different rating.
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Nope, its probably due to a high compression engine. For who's asking what is the compression ratio of your engine? Should be in your manual.

Another point to note is a higher compression engine uses less gas, higher compression = more power output

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Ok I looked in the owners manual for the BMW F650GS. The fuel requirement of the bike is 91 RON which how they measure octane in fuel in Europe or 87 AKI which is the north America (r+m)/2 way of measuring octane in fuel.

So, it is made to run on regular. No premium required.
 
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