Recently my cars been sucking gas, i didnt know if it was the transition of hot to cold, me driving is hard or what. But its just gotten worse 175 miles on 93 octane gas on a full tank... wtf could be causing this, im not trying to pay 50 dollars a week in gas!

 

Beyond faulty parts, have your tire pressures dropped significantly?

 

your plugs,definatley gas filter .. check those first beforey ou do anything.. and also your TB.

 

my one back tire seems to loose air every 2 weeks or so, just a little

 

get it fixed. there is a nail or something in it.

 

a tire will not cause such horrible gas mileage, check the KS...

 

Check Oxygen Sensors, too. Is there a way to tell how fast they are switching?

 

things to check:
1. KS sensor
2. O2 sensors
3. tire pressure(i forgot to pump after 1/4 mile and man!!!! i got 14 mpg on city)

 

transition from hot to cold should improve mileage and performance!

 

how hard are you driving? jesus thats the worst gas mileage i've heard of. you do any new mods to the car? like stated above, check ya sensors...

 

Get the tire fixed then do a full tuneup (using NGK plugs). Go check the ECU for a KS code. Clean out the TB and IACV while you're doing the tuneup.

How many miles do you have? Maybe your front O2 sensors are dying Like kenji said, cold weather is good for a Maxima

My mileage just dropped today (going to fillup today to see what I get exactly), but the weather turned hot and I do a lot of short driving trips and cold engine driving Maybe I should walk my lazy *** to school

 

im calling BS on kenji

"transition from hot to cold should improve mileage and performance!"

colder climate does increase engine power, but NOT mileage. More enegy is consumed since the air at the colder temperature needs to be heated to combustion temperature, therefore worse mileage at colder temperatures. however more oxygen is present in the air at cooler temperature attributing to the increased power.