Lately I've noticed that my mileage is no where near what it was in past cars, but don't want to blame the car yet if it's just me.

I'm filling with 87 octane and engine fluids were swapped out for Amsoil 0W20 full synthetic at 2200kms (currently has about 6800kms on the odometer). I average about 450kms to a tank, or about 9-9.5L/100kms according to the consumption meter in the car.

So my question is what fuel mileage do you get?

Its probably important to note that about 60-70% of my driving is in town and its manual transmission.

Thanks!

 

In miles, 26.5/gal. City driving in a manual as well.

 

That sounds about right. I get 28 to 30mpg 90% highway. I've had tanks in the low 20's and once got 31.5. This is in a tC1 but I don't see there being a huge difference in gas milage(especially in the city).

 

still you can't compare tc1 to tc2. that isn't the point of op's question.lol

 

I can drive aggressive all day long in the city and my mpg guage ends up in the 25.2-25.7 range.

Great compared to a turbo car lol

I'm happy with it, especially since I know I can get 30-32 mpg if I really need to.

 

I have about 1100 miles on the car. I've been watching the MPG closely. My driving is back roads with a little city and highway here and there. I have a stick shift. My driving is what I would call aggressive, but not crazy. I drive it like a sports car, but I don't let the revs get over about 5k and I generally drive 60mph or less. That said, here are my tanks:

25.7
25.3
25.6
25.7 (so far)

 

i'm getting 21... what am i doing wrong...

 

Currently mine is sitting at 28.8 mpg. It was at 29.0, but admittedly my driving has been becoming more aggressive.

About 65% hwy and 35% city.

I haven't reset it since I've owned the car and I'm at about 3500 miles.

Using the ECO light (auto yippeeee) helps a lot I think because I'm always conscious of that little thing.

 

driving style? gas? mods?

 

I drive very conscious of the Eco light, premium gas, no mods... I'm actually at 19.7 right now

 

Wow y'all get sooo much better economy than the 1G

 

found your problem.

 

Why not? They weigh about the same. Both have close ratio manual transmissions and rather large 4 cylinder engines. I think the EPA gas mileage is better because the "eco light" was used to game the EPA test. If there is no shift light the EPA shifts at a set point which is the same for all 5-speed cars. This completely ignores differences between cars or what one would do in the real world and some models suffer, particularly those with close gear ratios. The highway mileage is lower because it desperately needs a 6th gear.

In both cars the high displacement and long stroke of the engine makes it easy to dump lots of fuel(and get lots of torque) at low rpms. If pushed semi hard gas mileage plummets so fuel economy figures as low as 20 mpg(11.76 liters/100 km) are not uncommon.

 

Didn't expect this many responses! Thanks everyone!

Just converted my last tank and it was 24.5mpg. I was driving a little more aggressive this last week as I just got my cat-back installed and love the sound, so that's part of it.

I do hope it improves though. My SiR got 28-32mpg and my V6 MX6 which was very highly modded got 25-28mpg. This seems a little low for a brand new car.

 

Ethanol in the fuel causes a drop in fuel mieage as compared to fuel when it did'nt have it. mine costs me 2.00 more per week since the ethanol was added.

 

Well the mazda is a feather compared to the tC and honda engines don't make power(use gas) at low rps so they are easier to drive conservatively so your results seem about right.

 

Ethanol is a sob. Many larger gas burning trucks felt the burn of ethanol when it changed over. Save yourself the extra 30cents/gal, theres enough detergents to keep your car clean with 87 octane. Or just get your gas at a quick trip, they gauruntee your engine with their gas...

 

I average 27mpg and I drive in the city most of the time.

 

I filled up 3 tanks so far and got 29, 28, and 30.
I drive about 80% city and 20% highway.

 

I don't buy the eco light being the factor because the sticks don't have one and they get the same or better mpg.

As far a premium, I would not run it. Why pay more for lower octane gas? There seem to be many people who think that they will go faster or father on premium, totally not true. Premium is higer octane, which means is is less volatile. This is necessary to prevent detonation in high compression engines, but totally useless on the tC (unless you add a turbo or a blower). And if your looking for the "clean factor", I think the 87 is plenty clean.