500X Casper 3.0 - Guess Who's back in the Fiat Fold

Alanw47 · 13-03-2018

Originally Posted by Red Ruby

I have the AT9 2lt. Drops into 9th at 60mph. Will even hold this on level road down to 55mph. Combined 37mpg over 6000 miles.

Previous car was a Mercedes c220 Sport that averaged 47mpg. Over similar distance.

Think it’s the 4X4 drive train that pull the mpg down?

Ed

The mpg should improve with a slightly higher mileage and warmer weather. I achieve significantly better than that, but most of my driving is A roads or MWays

Geolith · 13-03-2018

Originally Posted by Red Ruby

I have the AT9 2lt. Drops into 9th at 60mph.

Could be the engine difference. 2.4 is an entirely different animal, after all. But I'm no expert on that.

Quote:

Think it’s the 4X4 drive train that pull the mpg down?

It is my understanding that, unless engaged, the AWD shouldn't affect the fuel economy. But I could be wrong.

cowabunga · 13-03-2018

Originally Posted by Goodcoin

My AT9 never switches to the 9th on that speed, 8th max. In my case, the 9th needs 75-80 mph to kick in.

Due to the lack of torque, I think the 2.0 mjd is about 50% higher.

Mine changes up to 9th at 56mph on the flat, then if i coast it drops down to 8th at about 50mph.

cowabunga · 13-03-2018

Originally Posted by Goodcoin

It is my understanding that, unless engaged, the AWD shouldn't affect the fuel economy. But I could be wrong.

If i remember correctly the auto and 4wd adds around 175kgs with the auto being about 100kg of this. So the 4wd on its own is about the same as carrying an extra adult passenger.

If 4wd is engaged fuel consumption will drop, in part due to their being more moving parts, and in turn more friction..... and heat.

Digressing slightly. I think I remember reading the AT9 is a popular choice for new models from other makers e.g. the LR Evoque/ Jaguar e-pace because it's relatively compact and light vs other auto's.

Geolith · 13-03-2018

Originally Posted by cowabunga

If 4wd is engaged fuel consumption will drop, in part due to their being more moving parts, and in turn more friction..... and heat.

Wait... you're saying the car consumes even less fuel with the AWD engaged?

cowabunga · 13-03-2018

Originally Posted by Goodcoin

Wait... you're saying the car consumes even less fuel with the AWD engaged?

Sorry!!! Consumes more fuel.

13-03-2018	#17
Geolith FKA Goodcoin Join Date: Sep 2017 Location: Lithuania Posts: 426 Thanks: 11 Trader Rating: 0	Re: Casper 3.0 - Guess Who's back in the Fiat Fold Originally Posted by Red Ruby I have the AT9 2lt. Drops into 9th at 60mph. Could be the engine difference. 2.4 is an entirely different animal, after all. But I'm no expert on that. Quote: Think it’s the 4X4 drive train that pull the mpg down? It is my understanding that, unless engaged, the AWD shouldn't affect the fuel economy. But I could be wrong. __________________ Current car: 2016 FIAT 500X Lounge, 2.4 petrol, 9-speed auto, AWD. Previous car: 2007 VW Golf Plus, 1.9 TDI, 6-speed manual.
	Quote

13-03-2018	#20
Geolith FKA Goodcoin Join Date: Sep 2017 Location: Lithuania Posts: 426 Thanks: 11 Trader Rating: 0	Re: Casper 3.0 - Guess Who's back in the Fiat Fold Originally Posted by cowabunga If 4wd is engaged fuel consumption will drop, in part due to their being more moving parts, and in turn more friction..... and heat. Wait... you're saying the car consumes even less fuel with the AWD engaged? __________________ Current car: 2016 FIAT 500X Lounge, 2.4 petrol, 9-speed auto, AWD. Previous car: 2007 VW Golf Plus, 1.9 TDI, 6-speed manual.
	Quote

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