That's correct Phil, 76L or 16.7 IMP Gal

 

^is it the same for yours?

 

Yes Deane the 07 Sedan holds 76L of fuel

 

^thanks. That's not surprising I guess.

 

Alright folks, I've done my test trial and haved filled up and used 9 tanks using Premium (instead of my previous Regular) and the results are in for the best and worst cases. There's 2 possible explanations for the following results.

70% City Driving (Deerfoot in Calgary can be considered a highway when you drive it at 6:30 in the morning )
Km Driven between fill: 579km
Tank to Full 75L
Gas Mileage (Kilometerage?): 12.9L/100km

95% City Driving (All around town on the weekend running A LOT of errands)
Km Driven between fill: 501km
Tank to full: 71L
Gas Mileage: 14.2L/100km

These numbers and SUBSTANTIALLY higher than what I was getting when I was filling just Regular (87 Octane) gas. I used to be able to get 600km quite easily and now as you can see, I'm seriously pushing my limits in attempting to get to the 600km mark (1L remaining in the tank)

So I'm not sure what's the deal. Based on our conversations before, I should be getting better gas mileage, ie. higher efficiency, when using Premium (91 Octane) versus Regular (87 Octane).

So either a) I drive a heck of a lot more vigorously when I fill using premium (unlikely since I've driven something like 4500km over the last few months which ranged from rather spirited to totally mellow with older passengers in the vehicle) or b) there's something wrong with my engine that makes it enjoy regular gasoline more!

So what's the deal folks? Am I wasting $10-$12 bucks every time I fill my tank with Premium? Then again, maybe the extra 20hp may be worth it.

 

^. keep in mind that all vehicles, especially those in Alberta, will get worse mileage in the winter. warmups, electrical accessories, wet/snowy roads, etc... all take their toll on fuel economy. wait until spring for an accurate assessment.

even in vancouver i notice differentials between summer & winter fuel economy.

>500km/tank is still above average for our vehicles it seems, especially city driving running errands which is a worst-case scenario for mpg numbers.

 

True enough, I've noticed that mine's fallen off during the winter too. Struggling to make 500k on a tank now whereas it was routine last summer.

 

i get about 200 miles on a full tank of gas...HORRIBLE?

 

That's about 321 km. Not good.....Mr Leadfoot

 

I have no problem getting 600kms or more with a tank of fuel (before the low gas light comes on), when I have checked it on my X.
I have noticed a big drop in my mileage since I switched to my snows/cold weather.

 

I was actually thinking about this the other day, I wonder if the softer compound creates a little more rolling resistance and therefore hurts mileage? I've noticed it since I put my snows on, too, and yet the roads have been pretty clear (sorry Maritimers) and I don't idle my car much.

 

LOL, our good weather made most of the snow disappear....until today with another nor'easter again.

Back on topic it is likely snows will have a negative effect... softer compound, aggressive tread patterns etc.

You guys get some good fuel economy combined and city. My car does well on the highway but swills in the city.

 

If I remember correctly your coupe got better mileage than our sedans did on our last long distance cruise (I think you were getting 31 mpg)

As far as summer and winter rubber go, I concur with you and swivelhips, the mileage goes down with the softer, more aggressive winter tires, at least that is what I have been experiencing.

 

As usual, something everyone else knew and I just picked up on. Say, I think that gravity thing is going to catch on, how bout you?

 

hummmmmmm : I'll have to think that one out for a while over a Cervasa (and it won't be a Budwieser )