What's the most economical speed for my car?
Answers:
For longer journeys, settle down behind a coach or a truck and let the drag tow you along, for shorter journeys, try and change up a gear before the turbo kicks in, plus, read the road as far as you can and let off the throttle and coast in gear for as long as you can before having to brake,, by coasting you use NO fuel at all,
seriously check this link http://uk.answers.yahoo.com/question/ind.
by doing this you can save as much as 50% of your fuel costs
I know the car will feel slower than a stoned snail but its not a sports car anyway(not to mention its a lot safer to drive that way)
parked is the most economical.
the correct speed limit of the road you are on!
I'd agree with Parked.
0 (zero) MPH will cost you nothing
Max torque in top
You get the highest efficiency in top gear, at the lowest speed you can maintain without the engine struggling . maybe 45 miles per hour / 70 kilometers per hour.
take out the engine and put in a hybrid engine and drive only in town
55 to 60mph on the long haul.
Zero! Seriously, the faster you go, the more fuel you use. Just go with the flow of the traffic, and don't worry about it, the difference will not be that huge. If you're that bothered about fuel consumption, you shouldn't be driving.
Using the metric system:
The most economical speed for most entry level sedan depending on course are 110km/h on a freeway, 79km/h on a highway and 52,5Km/h down town.
50 mph
As you get faster the power needed to push the air out of the way increases exponentially. The fuel consumption to drive at 65mph vs 55 mph is a 20% increase.
most cars are 56mph, but if you look in your car handbook you will find the correct answer
Actually the internal combustion engine is at its most efficient speed around 60-80mph or 100 to 140 km/h.
0.0 mph. Except for a little evaporation, it won't use much fuel when parked. Cut out ALL pleasure driving.
THE ARABS ARE WINNING THIS WAR.
Around 57 miles per hour.
The most econimical speed (give or take) is about 55mph on a flat road where conditional allow.
This accounts for 1,9 TD, 5 speed box.
(I used to drive 1.8 TD Mondeo)
At that speed, on the flat, there will be minimal boost pressure from the turbo so less fuel is being burnt than at full throttle.
Granted, if you pootle around at 30mph in fifth, you'll use proportionally less fuel for the speed & distace - but may risk over-stressing the big end / conn-rods from the high torque & low rev strain.
I honestly wouldn't worry about fuel economy - it's a diesel, Just be thankful it's not a V8 Jag..
Who cares? Warp speed Mr Zulu.
With almost any vehicle, and with turbodiesels in particular, your most economical speed will be whatever the slowest speed is you can drive in top gear. This is when diesels shine, as their design does not suffer from throttling losses (diesels do not have a throttle plate). Even if you are lugging the motor down at 1100 rpm or so, at 45 mph in top gear, that's when you will saving the most fuel.
the answers of parked where good but I can do better turned off
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