Mileage Calculation...
 

Type: Automatic RX8 2006
I use both auto and manual modes. Drive aggressive... Mostly Hwy driving.

Mileage: 6800km

Gas: Premium (Pioneer or Sunoco)

Price: 1.04

KM: 387 approx. Used the trip recorder to check the km. From a full to
empty tank of gas. (Red light empty warning light comes on)

Amount: $54.06

Hmmmm.....for mostly highway driving I'd expect to see a good bit over 400 on mine. But not that much of a difference I guess.

Maybe MT is more efficient, though I would have thought that to be counter-intuitive!?!?

The last time I filled up it was around 405km. (52.166L @ 106.5c/L) $55.56 I guess it depends on how much hwy driving I do. That last reading was 50/50. I'm trying it again. Record your's at your next fill up.

Someone else on here wrote me and she only got about 300km on a full tank; city driving, BC.

I have an MT, 80% hwy driving, and I prob average a little over 420k a tank.

I drive the same as daddyG, about 80% Highway. I last filled up 53L of Esso Premium, having gone 480km. I regularily average about 10.5 -11.5L per 100km.

I have 91,000km an 6spd manual.

Juergen

I yeild around 420km/tank at dipping a littler bit below the "E"

And sunoco, I also believe the 94 burns alot faster the 91 Shell's.. thats you you get tha kind of mileage, and also, auto has a big effect.

I got approx 400km.. all city driving. Shell V-Power 91, first fill up only :)

Speaking of the Sunoco 94 (I use Esso 91 mostly) - do you find any different in performance over a 91 octane?

You will find with SUnoco 94 your mileage is always worse than with the 91 of other stations. This is because Sunoco has 10% ethanol, which is used to increas octane. The disadvantage of this is ethanol requires a richer air/fuel ratio than regular gasoline. About 15% richer. So this affects your mileage.

at the 3/4 mark I get about 300 kms with almost all city driving (like 95%).

About 380 mostly non-highway driving before my fuel light comes on - about 54 litres to refill. It kinda sucks, but my wife's new small SUV - a Grand Vitara JLXL - is worse.

That could be why mine is so low...I fill up at Sunoco 94. I'll try 91 and see the difference.

doesnt your car have the padel shift? i don't really know about RX8 AT but i know the new AT model for most cars save way more gas than manual does. Once i was at NIssan dealer, i had seen the new nissan altima eats only 9.8L/100km with 3.5L(or3.0L i forgot)!

k, my full tank gas got 435 km once, but about 400 was from Highway....91 oct

You will, for sure see a difference, becuase i've tried=)

shell v power 91 is way better mileage vs sunoco's 94, but then i should be running 94 with boost, Lessha, you could get away with 91!, much cheaper too!

I believe you because my second reading was with a different gas station and I got 405km/tank, (52.166L @ 106.5c/L) $55.56

I am on my third reading will list the results soon.

Give Me A Break ..
 

Give

Give Me A Break ..
 

You buy a nice car and you want to nickel and dime the gas milage ???
Let me tell you this story when I bought my AT back in 2004.
I said what !! when they told me I had to pay 10 cents a litre more for an 8.
Then I did the math. 50 litres a week = $ 5.00. 50 weeks a year = 50 x $5.00 = $250 a year. As a good Italian Boy ( not me ) would say... Forget About It !!
Enjoy the Car .... Even though you have to drive it in Hamilton ....

That's it people! Mic has spoken!! :cool:

This thread is not about saving $$ it's about MILEAGE... I don't care about saving $$ after what I spent for this baby...

I don't drive my car very hard typically... For the most part its hwy driving at 120kmh in 6th gear (to and from work)
From full to Red-Light last time I got around 315km... That is pathetic...

I should probably have something looked at, correct? Like, a plugged cat or something? I don't know...

I've noticed an increase in mileage since i have strictly been using 91 octance instead of 94. I just took a trip to toronto from kingston and got 508km on a full tank.....light was on for about 5 minutes before I filled up. Cost me 58 dollars to fill.......believe gas was 101xx for 91 octane. Usually in the city I average about 320 -340/ tanks......higway about 440+. From what I can see everyone seems to get slighlty different results:dunno:

ps- I should add that this last trip was taken after I had installed my sr motorsports high flo cat.....there was a slight increase in mileage- about 30-40km per tank from what I can notice.

How does it sound with the cat? Do you have a catback as well? If the sound you have before was a 5 (1-10), how loud is it now?

I like it A LOT.....if we were rating a stock rx8 at a 5....then with the high flo cat I would say its an 7.......this is all subjective of course..........if you want I can take a short vid and send it to you via pm........just let me know. I dont have a cat back.......yet. more concerned with suspension stuff...the stock cat back is pretty decent as you dont get much gains from aftermarket exhausts.

No thanks, I don't need a video. You can't really tell how loud something is from a video. I ask because I've been casually considering a high flow cat but I really don't want my car any louder than it already is.