Gas Mileage Problems?

Don't worry, i just hit 4k and it is getting better, I am at about 25-27 now.

The first oil change helps, the first few k miles are bad

 

my car is exactly the same but i thought it was only me cause i kinda have a heavy foot but i get about 17 19 in city and like 34 in highway and im all stock

 

you can always hit the INFO button to clear it out

 

those are just avg for that driving condition. your MPG will also decrease if you idle for a while too.

I get about 350 a tank. that includes city and highway. I divide that by how much gas I usually put in my car on E...which is about 13.

350/13=27 MPG

 

Thats kinda weird that your gettin bad gas mileage even if it is new. My car had 100 miles on it when i got it and i instantly got the MPG on the window. I have full synthetic oil now and run 93 octance fuel and get about 21-22 in the city and 32-33 on the highway

 

yeah def. however, if you are considering switching to a full synthetic oil I wouldnt do so until you have between 7 and 10k miles on your car. the reason is because the motor is still in its break-in and full synthetic oil can kinda slow the process and make it harder on the motor. A synthetic blend is do-able but still not recommended.

 

CLEANrideGTS

y do use 93 octane? just wondering....

 

Well for a couple of reasons i guess. I do a lot of drag racing with true 10.5 cars that run on alcohol and race fuel so this is where i get my reasoning... The higher the octane the fuel burns at a lower flash point, essentially burning cool and cooler is always better. The more heat you can get out then the better the car runs. Now, you cant run race gas in your car because mosr race gases are leaded, which would clog up your catalytic converter. So the 93 octance doesnt help much but just a little

 

wow, more misinformation. Hope you like carbon buildup.

 

the 93 wont hurt your car

 

wow ok i just though about this and i realize. duh.. feels like a monday or something. the higher the octane rateing the SLOWER, I repeat - SLOWER, the fuel burns. If your engine is designed to burn 87 efficently and you run 93 your not only wasting your money but are actually running less efficiently. Unless you have pre-detonation (that ping you hear because the fuel is igniting due to compression like a diesel) run the minimum. All the racing stuff got me kinda confused, sorry for the mix up

 

Running 93 octane helps the life of the engine, at least thats what i know. My dad had this 94 Ford probe since he bought it new, and he always put premium in it. He just traded it in after 14 years. It had 130,000 miles on it and the engine still ran great.

 

I dont know, my dad always told me that because its more actual gas and less additives, its just better for the engine. Who knows.

 

thats completely false. The higher the octane rating, the more resistance it has to detonation/pinging....nothing more. The quick and dirty is basically that if X car manufacturer designs an engine to run 87 octane, that means that your car will get the most power and efficiency with that octane. The engine will advance timing as far as possible because the computer was set to use a specific fuel. So putting in more expensive, higher octane gas will not change the amount of timing your engine is pre-set to use. You car has no way to determine if the gas is higher octane and will most likely run worse as the O2 sensor reads a rich mixture of gas. However, running a lower octane fuel can cause the engine to ping, in which the car CAN adjust for by retarding the timing and increase the amount of fuel being injected into the cylinder.

 

Wow, this got off topic fast.

MPG's can be totally different person to person. I for example, have a heavy foot, so even though I'm in a 4 cyl, I only get apporx 23-25 MPG on average, where some will get upto 30+.. or some get lower. Gas mileage mostly has to do how you drive your vehicle.

Any Mods might effect the outcome aswell. Some modifications will have a positive effect, where some will have a negative. Also, the combination of some mods might sway either way aswell. Location plays its part too. Someone who lives in a flat terrain will get beeter mileage then someone who lives in a mountianous area.




OT..

For the people useing higher octane, its totally unnessisary in our cars (in its N/A form, if you turbo it, that might be something different all together.) Your just wasting your money at the pump. It does not make your car run better/faster, it does not extend the life of your car... its does not.. does not... does not.. and on and on ... please google. I can go into all the reasons you dont need it, but googling will give you the idea, and you'd prob beleive it more becuase its coming from people in the industries.

 

I got great mileage on mine brand new, like 23 by the 1st tank....

 

to the original poster, this is a very smart ass remark so take it how you take. Make sure the info cluster is in english/standard and not metric. Sometimes WE do miss some of the obvious things.

I only know one person who gets the same gas mileage as you but he is a tard when he drives, with mix/match parts and he is in love with his "girlfriend"