Originally Posted By: rrounds
Yes, I love Fuelly to see how the cars I'm looking at perform at the pump.
Looks like around 30.8 for 2014 gas engines.
http://www.fuelly.com/car/chevrolet/cruze/gas l4
and 41.3 for the 2014 diesel
http://www.fuelly.com/car/chevrolet/cruze/diesel l4
That's 34% better mileage for the diesel.
ROD
One thing I noticed looking at these two links is the size of the datasets on the above links are much different:
2014 gas are 7 cars, 30 fuelups, and 8,300 miles tracked
2014 diesel are 23 cars, 222 fuelups, 95,000 miles
There may be some other factors at work - particularly talking about a dataset of 7 gas engines (miles on the car, drivers adjusting, to new cars, error from small dataset). The gas engines mpg estimates for 2013 and 2012 were 33.4 and 33.7 respectively.
The gas dataset is also going to have a variety of models which have EPA estimates as well as the different estimates for manual versus auto transmission.
I would think for the gas estimates any LS Auto is going to skew the average way down while the ECO Manual would bring it up, but then driving conditions would have to be accounted for too...I've seen the same debate brought up on the LS versus 1LT versus Eco cost to purchase vertsus cost of gas over he lifetime of the vehicle, at least to me it never seems a clear cut answer.