I have had my Scion Tc for almost 4 months now. The first few tanks were getting around 23 miles per gallon. I have noticed that each tank keeps getting better and better. My last tank got 28 miles per gallon. My car now has almost 2,000 miles and I have not changed the oil because I think it might be a special break in oil. Anyway these miles per gallon figures are all city. I have not had a chance to test out highway miles per gallon yet. My car is stock with a 5 speed and I use my Air conditioner about 40% of the time.

 

It should be pretty normal. The car has started to break in more. So things work better & so on. You are also learning what the car likes, where it likes to be shifted & so on. I would think after you change the oil, the milage might even go up just a pinch after that.

 

My Xa did the same then it all went down hill.........................

 

My mileages suck **** 17, 18.5, 19, and 16.75 respectively. I have about 900 miles on the car so far, all were city miles with A/C use 30%. I do drive pretty spiritidly but I keep it under 4k rpm due to break in. (100 miles to go )

 

i've been getting 25.5 in my last few tanks. 5spd.

i stay below 4.5 and rarely use my ac. im at 1500 now and most are highway miles anyway

 

my mileage seems to be getting worse...

mostly because I seem to be driving faster and faster. since the breakin period ended and I got the susp. mods I accelerate from a stop faster and I cruise faster than I used to. but even with driving habits about as bad as they can be I still get 22+ mpg. maybe in the next couple of weeks I'll drive conservatively and see what I get mpg-wise.

 

I can't believe how bad some of your mileages are. I get around 29 mpg with 75% city driving and maybe 30% air conditioning. I have never gotten worse than 27 mpg on any tank and I drive pretty hard. Seems odd to me that one of you only gets around 20 mpg and the other around 22. I miss getting 32-33 in my RSX-S but my much lower payment nd not having to use premium makes up for it.

 

that does it, on my next fill up I'm going to drive like I should and see what my MPG are.
btw, what octane do you use?

 

im not sure the mpg but i know its worse then my friends grandprix gtp we have been comparing them and that doesnt seem right to me i think its my driving im shifiting at to high of an rpm for daily driving usaly around 45

 

I am almost at 1,700 with mines... had it for 7 week. Did an oil change at 1,300... seems like its getting better... then agian I haven't been using the A/C at all this past few weeks.

How do you calculate agian? I just filled up tonight and haven't drove it anywhere... so I will reset the meter.

Filled Shell 87 octane gas... can't afford it anymore... the cost for gas for tonight was 26.55 (full) and last Wed. I put in 20.00 (not full)

 

at 4000 now, 5spd and drive like a mad man on crack :twisted: and still get around 24-23mpg

 

mine keeps getting worse to for some reason.... what kind of maintenance would help fix something like that?

 

My first tank was 21mpg, combined. My second tank was 20 mpg, with a bit more highway! I am concerned becasue I have not been gassing it too much due to break in period. Am starting to think that when I start really giving it the gas, mileage will be in SUV territory.

 

I usually try and shift around 3000 rpm, I think that is why my gas mileage is so good in the city, 26-28. I think some people shift at 4500 rpm and that makes a big difference on gas mileage I think.

 

My tc has 4500 miles and the mileage is at a constant 18-20 mpg range, with about 75% city driving. I have an AT but I let it shift at around 2500-3000 range most of the time. Oil change was done at 3k. The mileage is not horrible but its not as great as i expected. As a side note though, I went on a 300 mile trip (all highway at 75mph) and the mileage turned out to be 30mpg. Go figure.

 

I just finished my break-in on my auto tC and I am getting around 19-20 when I am 100% city and if I do like 20% highway I only get up to 21-22. Will putting in a K&N filter and changing the oil help that.
Again, my car is an auto and I am in LA so I am sure that will lower my numbers somewhat but I don't drive with a leadfoot and the a/c is almost never on. Is there something wrong with my car? Shouldn't I be getting better numbers then this?

Could it have something to do with the fact that my car only goes 2-3 miles in the morning and 2-3 at night? It takes me a long time to build up miles with my tiny commute but when I do the mileage isn't good.

 

How long does it take you to drive 2-3 miles? My commute to work is about 3-4 miles and it takes me about 12-15 minutes. When I was commuting only to work, I think my mileage was around 25 for city driving. Now that I commute to school which is about 15 miles away, it takes me about 35 minutes, my mileage has gone up to 26-28. I think I can keep it at 28+ if I keep my shifts at around 3000 rpm. I do not have any estimates for highway mileage yet. I fill my tank every 2 weeks and I drive over 400 miles in that time.

Your in California? I am guessing your 2-3 mile commute might take 30 minutes because of that traffic? In that case, I can understand why your only getting 20 miles per gallon.

One more thing, I am keeping the oil in the car for at least 3000 miles just in case it is special break in oil. I think newer cars have magnets that catch the metal shavings. Someone here changed their oil at around 1000 miles and said it was really clean and was a lot thicker than normal oil. That sounds like break in oil to me, not sure.

 

Actually it only takes me 10-15 mins. I lucked out in that respect. Now I am really thinking something may be funky with my car after reading your mileage.

Good to know. I guess I'll wait a bit on that. Sounds like I may have to call Scion. Can anyone else weigh in on this and let me know what you think?

 

is it better to put it in neutral while coming to a stop in the 5spd or staying in gear and let the engine slow down while applying the clutch for gas mileage?