Fuel economy - anyone beating the official figures?

[cheddar]

My father reckons that overall he's 4mpg up on the manufacturers claimed mpg in his Skoda Octavia, no mean feat given that most of us struggle to get within 20% of the 'official' figures.

He's a real 'neutral downhill' and 'into 6th before he's out of the driveway' type so it's possible.

Anyone else manage this?

[cheddar]

Dog Star said:

SLK diesel
150mph

70mpg
750miles on a tank.

Must be right up there on 'top speed/economy' graph

I smell a potential new thread

[cheddar]

Dog Star said:

cheddar said:

Dog Star said:

SLK diesel
150mph

70mpg
750miles on a tank.

Must be right up there on 'top speed/economy' graph

I smell a potential new thread

You're being silly and deliberately misquoting me; obviously it's not going to achieve them at the same time.

Not misquoting you, my point was that a car can achieve X top speed and X mpg, not at the same time.
I'm impressed at your mpg, given the official figure of 56.5 you've beaten it by over 25% and It'd be hard to find a non hybrid car that can hit 150mph or 70mpg

[cheddar]

datum77 said:

Chedder. Your dad is under a complete misapprehension that putting any car into neutral while going downhill will save fuel. IT WILL NOT

The ONLY way to correctly work out fuel consumption on any vehicle is to fill the vehicle with fuel right to the very top and note the mileage.

The above is the MOST ACCURATE way of working out the fuel consumption of any vehicle

To be honest datum I don't know if he coasts in neutral or not but he does drive for economy and loves his figures, he's far more likely to tell me how few rpm his car needs to pull smoothly in 6th than his highest top speed, he quotes brim to brim average mpg to four decimal places and never uses the obc as his reference.
He's an ex test driver for mainstream manufacturers and kind of knows his stuff, probably best to avoid a dinner invite with him unless that's your thing :-)