"They were telling me to save fuel too but they didn't put a lap time on it - just said you have got to save a bit of fuel, " added Button.
"They asked me to save fuel but it's difficult to know how much you have to save, " said Hamilton.
Humberside Police and East Riding of Yorkshire Council are to share fuel facilities to save money.
The double-decker buses have climate control, free wi-fi and hybrid electric-diesel engines to save fuel.
In addition, planes are flying about 2% slower to save fuel costs, airlines say.
The company is busily installing "winglets, " upward-pointing extensions at wingtips that reduce aerodynamic drag and save fuel.
They go on foot to save fuel and only take the car when the situation requires it.
Ship operators who lease most of their ships only have one easy option to save fuel: slow steaming.
Reducing fouling will save fuel, in turn saving money, as well as cutting shipping's contribution to greenhouse-gas emissions.
Lithium ion batteries keep a charge longer than nickel cadmium and weigh less, so the plane can save fuel.
The best way to save fuel is through less weight and smaller engines.
Diesel engines save fuel too, and have become quite popular in Europe.
Routes are disappearing, planes grounded, baggage charges rising, and now airlines are employing every tactic to lighten their loads to save fuel bills.
Eco mode slows the throttle and dampens the AC to save fuel but is noticeably more sluggish than the sport or even the normal settings.
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Once linked, it'll monitor your driving habits and routes, sending gentle reminders to not brake so suddenly or accelerate so quickly in a bid to save fuel.
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For example, data on miles traveled, gasoline consumption, driving habits, and maintenance history can help improve fuel efficiency and save families and businesses money at the pump while reducing harmful air pollution.
And, as well as all the environmental benefits of eliminating paint, the film-coating has the added advantage that it can save fuel by reducing the friction between the aircraft's skin and the air.
Martin Riecken, head of corporate communications in the Americas for the airline, talked about how the company pooled its expertise in the various fields within the company to find solutions to save fuel on an aircraft.
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The McLaren drivers were told to save fuel but soon Button was challenging Hamilton and he took the lead briefly by going around the outside of Turn 12, which becomes the inside of Turn 13, the corner on to the pit straight.
The hybrid cars built by Toyota and Honda Motor (nyse: HMC - news - people ) save fuel and are marvelous engineering exercises, but you don't want to drive on those skinny tires in the Snow Belt, believe me.
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Fuel savings alone will save the airlines many thousands of dollars per year.
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"Biofuels, like palm oil, produce more carbon emissions than they save, fuel land grabs and increase global food prices, " she said.
As a result, consumers will have many options to save on fuel.
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In jet aircraft, purifying cabin air would save on fuel needed to compress fresh air bled from the engine to ventilate the cabin.
Mr. WETHINGTON: I try, everywhere in my life, to save as much fuel as I personally can.
It's a time when Earth and the Red Planet will be close and save money on fuel costs.
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