Si gas mileage getting worse...

hiphopaddict · 12-01-2007, 12:30 AM

I have an '07 Si and I have always run Shell V-Power in it. It used to get between 340-350 miles to the tank. These readings were taken this past summer. I ran the A/C constantly b/c it was the hottest TN summer I have ever experienced, and I've lived here my whole life.

Now all of the sudden I'm getting around 300 miles per tank. I've tried some Fuel injector cleaner but it didn't help at all. The car seems to be running fine, just not getting good mileage.

Anyone had this experience?

TheChosenGuy · 12-01-2007, 12:52 AM

Quote:

Originally Posted by hiphopaddict

I have an '07 Si and I have always run Shell V-Power in it. It used to get between 340-350 miles to the tank. These readings were taken this past summer. I ran the A/C constantly b/c it was the hottest TN summer I have ever experienced, and I've lived here my whole life.

Now all of the sudden I'm getting around 300 miles per gallon. I've tried some Fuel injector cleaner but it didn't help at all. The car seems to be running fine, just not getting good mileage.

Anyone had this experience?

Damn 300 miles per gallon? Holy shit dude you have to tell me your secret! I don't even think the Flinstones got it that good and they didn't even use gas!

MutantCheese · 12-01-2007, 12:54 AM

sounds like highway mileage rather than city. My gas mileage is improving since I bought mine nearly a year ago.

datbacker59 · 12-01-2007, 01:26 AM

300 to 350 mpg? wtf!!! im getting 260-290

icewildabeast · 12-01-2007, 01:41 AM

gas mixtures are changed during the winter, it's not unusual for your mileage to vary between winter and summer. (not to mention during winter you use more gas anyways)

rbsjnh · 12-01-2007, 01:45 AM

^^^^why then does gas seem to get cheaper in the winter...less traveling?

icewildabeast · 12-01-2007, 02:00 AM

yeah, basically

***portabuddy*** · 12-01-2007, 04:56 AM

why cant cars just run on hopes and dreems and not blood sweat and tears???

wwbaker3 · 12-01-2007, 05:05 AM

gas mixture difference between summer and winter...

another thing to try is replacing your engine filter if it's getting close to the interval

ryker · 12-01-2007, 11:36 AM

Takes longer for the engine to warm up. In my EX I only get 31mpg going to the gym on a cold engine but can get over 40mpg on the trip home since teh engine is warmed up.

-
Your can try a small peice of cardboard to cover up a small portion of the radiator, to aid in quicker warm ups.

-
Cold weather decreasing tire pressure. Check them out.

leonphelpss11 · 12-01-2007, 11:38 AM

Wow, I get around 250 to the tank.. I don't use AC at all unless it is raining.. I can never get passed 25 miles to the gallon.. Even if I drive conservative most of the time

hiphopaddict · 12-01-2007, 01:01 PM

Quote:

Originally Posted by icewildabeast

gas mixtures are changed during the winter, it's not unusual for your mileage to vary between winter and summer. (not to mention during winter you use more gas anyways)

I would say that this explains it. I didn't think about that.

What are the differences between summer and winter gasoline mixutres? Do they just add things to keep it from freezing?

drexp2000 · 12-01-2007, 01:05 PM

Around 250 is when the Empty light comes on... 300+? That must be nice!

hiphopaddict · 12-01-2007, 01:09 PM

Quote:

Originally Posted by drexp2000

Around 250 is when the Empty light comes on... 300+? That must be nice!

I do mostly highway driving. That 300-350 per tank turns into 150-200 per tank if my foot gets really heavy.

tite681 · 12-01-2007, 01:45 PM

Quote:

Originally Posted by datbacker59

300 to 350 mpg? wtf!!! im getting 260-290

Yeah that.

For some unexplained reason, I get better gas mileage with Shell as opposed to 76 and Chevron.

inyong1988 · 12-01-2007, 02:00 PM

i only get about 280miles.

Duce2k · 12-01-2007, 03:57 PM

I get around 300+ with 50/50 city/highway driving

rbsjnh · 12-01-2007, 03:58 PM

Quote:

Originally Posted by tite681

Yeah that.

For some unexplained reason, I get better gas mileage with Shell as opposed to 76 and Chevron.

I think its the ethanol content...around here gas stations must post the ethanol content...the higher it is the worse my gas mileage is...

Unfortunately Mobil/Exxon gives me better gas mileage than the cheapo's...

It sucks cause I don't want to give Mobil/Exxon my money,,,

EuphoricRhythm · 12-01-2007, 04:32 PM

this last weekend i got around 330 miles per tank in my si with moderate vtec to pass.

***vtak07*** · 12-01-2007, 04:34 PM

dirty air filter?

12-01-2007, 12:30 AM	#1 (permalink)
hiphopaddict Senior Member Join Date: Nov 2006 Location: Cashville Ten-a-key Posts: 219 Kevin Williams iTrader: 0 / 0%	Si gas mileage getting worse... I have an '07 Si and I have always run Shell V-Power in it. It used to get between 340-350 miles to the tank. These readings were taken this past summer. I ran the A/C constantly b/c it was the hottest TN summer I have ever experienced, and I've lived here my whole life. Now all of the sudden I'm getting around 300 miles per tank. I've tried some Fuel injector cleaner but it didn't help at all. The car seems to be running fine, just not getting good mileage. Anyone had this experience? Last edited by hiphopaddict; 12-01-2007 at 01:15 AM. Reason: mistake

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12-01-2007, 12:54 AM	#3 (permalink)
MutantCheese Senior Member Join Date: Aug 2006 Location: Edge of Insanity Age: 39 Posts: 3,308 2008 NFR S2000 iTrader: 0 / 0%	sounds like highway mileage rather than city. My gas mileage is improving since I bought mine nearly a year ago.

12-01-2007, 01:26 AM	#4 (permalink)
datbacker59 Senior Member Join Date: Aug 2006 Location: New York Age: 20 Posts: 2,276 Its a Live2Hustle Thang... iTrader: 3 / 100%	300 to 350 mpg? wtf!!! im getting 260-290

12-01-2007, 01:41 AM	#5 (permalink)
icewildabeast Senior Member Join Date: Nov 2007 Location: Hoodridge, IL Age: 25 Posts: 310 Will iTrader: 0 / 0%	gas mixtures are changed during the winter, it's not unusual for your mileage to vary between winter and summer. (not to mention during winter you use more gas anyways)

12-01-2007, 01:45 AM	#6 (permalink)
rbsjnh Senior Member Join Date: Nov 2007 Location: in yo mama Posts: 1,550 WARNING: Honda Zealot iTrader: 0 / 0%	^^^^why then does gas seem to get cheaper in the winter...less traveling?

12-01-2007, 02:00 AM	#7 (permalink)
icewildabeast Senior Member Join Date: Nov 2007 Location: Hoodridge, IL Age: 25 Posts: 310 Will iTrader: 0 / 0%	yeah, basically

12-01-2007, 04:56 AM	#8 (permalink)
*portabuddy* The McGyver ofall McGyves Join Date: Jun 2007 Location: Mississauga Ontario Age: 23 Posts: 5,204 Bart Koscow iTrader: 7 / 100%	why cant cars just run on hopes and dreems and not blood sweat and tears???

12-01-2007, 05:05 AM	#9 (permalink)
wwbaker3 Member Join Date: Jun 2007 Location: Mill Creek, WA Posts: 73 Bill iTrader: 0 / 0%	gas mixture difference between summer and winter... another thing to try is replacing your engine filter if it's getting close to the interval

12-01-2007, 11:36 AM	#10 (permalink)
ryker Senior Member Join Date: Sep 2007 Posts: 4,724 iTrader: 1 / 100%	Takes longer for the engine to warm up. In my EX I only get 31mpg going to the gym on a cold engine but can get over 40mpg on the trip home since teh engine is warmed up. - Your can try a small peice of cardboard to cover up a small portion of the radiator, to aid in quicker warm ups. - Cold weather decreasing tire pressure. Check them out.

12-01-2007, 11:38 AM	#11 (permalink)
leonphelpss11 Senior Member Join Date: May 2007 Location: SWLA Posts: 1,409 iTrader: 6 / 100%	Wow, I get around 250 to the tank.. I don't use AC at all unless it is raining.. I can never get passed 25 miles to the gallon.. Even if I drive conservative most of the time

12-01-2007, 01:05 PM	#13 (permalink)
drexp2000 Senior Member Join Date: Dec 2006 Location: Torrance CA Posts: 237 iTrader: 3 / 100%	Around 250 is when the Empty light comes on... 300+? That must be nice!

12-01-2007, 02:00 PM	#16 (permalink)
inyong1988 Senior Member Member Join Date: Jun 2006 Posts: 18,911 iTrader: 43 / 96%	i only get about 280miles.

12-01-2007, 03:57 PM	#17 (permalink)
Duce2k Senior Member Join Date: Apr 2007 Location: Houston, TX Posts: 2,916 iTrader: 4 / 100%	I get around 300+ with 50/50 city/highway driving

12-01-2007, 04:32 PM	#19 (permalink)
EuphoricRhythm Senior Member Join Date: Jun 2007 Location: SoCal Age: 23 Posts: 155 iTrader: 0 / 0%	this last weekend i got around 330 miles per tank in my si with moderate vtec to pass.

12-01-2007, 04:34 PM	#20 (permalink)
*vtak07* 4 serial? Join Date: Jul 2007 Location: Indian Head, MD Posts: 7,531 Jed iTrader: 4 / 100%	dirty air filter?