The G-Spot General discussion about the G Series;
G35 & G37, Coupes & Sedans

Would you get better MPG's if you only fill your car up to the 1/4 mark?

Thread Tools
 
Search this Thread
 
Rate Thread
 
  #31  
Old 03-30-2011, 01:17 PM
anynigma's Avatar
Registered User
Join Date: Feb 2010
Location: Boston Metro West
Posts: 394
Received 7 Likes on 7 Posts
Athens Blue G35 Coupe 6MT
Originally Posted by Neal376
yes, but the saving is most likely negligible.


I skip gears, and I stick to the speed limit (and it took me a loooooong time to develop this discipline) and I get the EPA 17-19 in town.

if i put my foot down for just one second my average drops down to 15. yea, your right foot is def the biggest factor
I am always in 6th gear when I am above 35 mph. I'm assuming you're in a manual? You running premium gas and up to date on all maintenance? I average 20 in town.
 
  #32  
Old 03-31-2011, 10:56 AM
J3wman's Avatar
Registered User
Join Date: Feb 2011
Posts: 20
Likes: 0
Received 0 Likes on 0 Posts
you would notice it if you were on a quarter mile more than if you were going for mileage. to be honest id say its better to just keep it above half a tank. that way you don't cause any damage to the fuel pump either.
 
  #33  
Old 03-31-2011, 11:09 AM
G35 Dream's Avatar
Registered User
iTrader: (26)
Join Date: Aug 2010
Location: Oklahoma
Posts: 670
Received 34 Likes on 19 Posts
Ive heard it is bad for the fuel pump if you let the tank stay that low all the time.
 
  #34  
Old 03-31-2011, 11:55 AM
bluedevils95's Avatar
Registered User
iTrader: (6)
Join Date: Dec 2008
Location: Torrance, CA
Posts: 19,624
Received 576 Likes on 502 Posts
^ From what i hear, yes because the pump is working harder to suck from the bottom of the tank. Yes you would get better gas milage w/ only 1/4 tank but if you want to max it out for every little thing, when the light just turned red turn off your car. That is 45-60 seconds of gas waisted. But no one cares for that extra mile. It's just too small to see. Just fill the tank up all the way man.
 
  #35  
Old 03-31-2011, 02:00 PM
gary c's Avatar
Registered User
iTrader: (10)
Join Date: Feb 2005
Location: Valencia, Ca
Posts: 19,433
Received 1,132 Likes on 1,002 Posts
A better idea is to keep your tank full, with the cost of gas going up daily/hourly. That's a better way to save $$!
Gary
 
  #36  
Old 03-31-2011, 02:24 PM
grocerylist's Avatar
Registered User
iTrader: (4)
Join Date: Sep 2010
Location: Houston, TX
Posts: 180
Received 2 Likes on 2 Posts
Another gas mileage thread? lol seriously... gas is such a small expense in your annual expenses.

20k miles @ 15mpg @ $3.50/gallon = $4666
20k miles @ 20mpg @ $3.50/gallon = $3500

Drive the G like you enjoy the car. I'm not going to sissy foot my car to save maybe $1100/year.

And please... enough with the MPG threads! I hope that no one bought this car because they thought it got good gas mileage. I don't know why this topic is beat like a dead horse over and over and over. Gas is not a huge expense... there are other things you could save more money on. If gas is an issue then you probably bought the wrong car.
 
  #37  
Old 03-31-2011, 02:30 PM
dphillips2011's Avatar
Registered User
iTrader: (7)
Join Date: Jan 2011
Posts: 369
Received 9 Likes on 9 Posts
I get 23mpg if i baby the car.
17 if i dont.

enjoying the car is definitely worth the $1,000.
 
  #38  
Old 03-31-2011, 02:31 PM
dphillips2011's Avatar
Registered User
iTrader: (7)
Join Date: Jan 2011
Posts: 369
Received 9 Likes on 9 Posts
I get 23mpg if i baby the car.
17 if i dont.

enjoying the car is definitely worth the $1,000.
 
  #39  
Old 04-03-2011, 03:56 PM
geegeegee's Avatar
Registered User
iTrader: (9)
Join Date: Dec 2010
Posts: 304
Received 6 Likes on 6 Posts
I think part of the reason for better milage would be just trying to conserve the gas LOL.
 
  #40  
Old 04-03-2011, 10:49 PM
jicenroa's Avatar
Registered User
iTrader: (1)
Join Date: Nov 2010
Location: York PA
Posts: 144
Likes: 0
Received 0 Likes on 0 Posts
Dont rev it past 3500 and drive the speed limit youll be fine. If your broke like me you only ever fill it to half tank LOL
 
  #41  
Old 04-07-2011, 07:28 PM
telcoman's Avatar
Super Moderator

Join Date: Mar 2011
Location: Central NJ
Posts: 2,605
Received 196 Likes on 177 Posts
Front and rear cameras, tire pressure for all four tires can display on screen,folding side view mir
Originally Posted by Anton_Chigurh
This may be a crazy way of thinking...but would you get better MPG's by say only filling up only to 1/4 due to weight?

A gallon of gas weight 6 lbs...So my tank is 16 gallons..if i only filled up to 6 gallons...i would be saving what 60 lbs..is that something that even would matter...i know weight matters in MPG's, HP ect...but is 60 lbs really anything?

Of course it would suck filling up everyday but i am just wondering if you did this for say 2 months..would you notice anything
I don't think so. Everytime you stop whether for gas or traffic lights your MPG goes down. Also MPG is affected by temperature.

I did go 460 miles and took 16.723 gallons between Smithfield, NC and Bordentown, NJ a couple of years ago. I no longer allow the fuel level to drop below 1/4 mark after discovering the fuel in the tank cools the fuel pump.
Allowing the fuel pump to overheat can shorten its life.

Telcoman
 
  #42  
Old 04-07-2011, 09:28 PM
Affalterbach's Avatar
Registered User
iTrader: (1)
Join Date: Mar 2011
Location: SD
Posts: 333
Received 5 Likes on 3 Posts
I must be doing it wrong then. I just divided the miles I got until the fuel light came on by the gallons I put in it last (takes 16-16.5 gallons right when the light comes on) and I just avgd 14.8mpg I do drive it fairly hard when I'm getting on freeways and like to occasionally do 80-90mph (WOT) fairly quickly. I drive it pretty easy on the streets tho. I'm starting to think something else can be causing the low mpg. All it has is the JWT pop charger and Z tube, the filter looks pretty clean. I'd say I driev half and half freeway and city. It just took 16.6 gallons and I reset the trip so I'll check again next week.
 
  #43  
Old 04-07-2011, 09:30 PM
Anton_Chigurh's Avatar
Registered User
Thread Starter
iTrader: (1)
Join Date: Dec 2010
Location: Gillette Stadium
Posts: 2,513
Received 59 Likes on 51 Posts
Originally Posted by Affalterbach
I must be doing it wrong then. I just divided the miles I got until the fuel light came on by the gallons I put in it last (takes 16-16.5 gallons right when the light comes on) and I just avgd 14.8mpg I do drive it fairly hard when I'm getting on freeways and like to occasionally do 80-90mph (WOT) fairly quickly. I drive it pretty easy on the streets tho. I'm starting to think something else can be causing the low mpg. All it has is the JWT pop charger and Z tube, the filter looks pretty clean. I'd say I driev half and half freeway and city. It just took 16.6 gallons and I reset the trip so I'll check again next week.
What speed do you do on HWY?
 
  #44  
Old 04-07-2011, 09:41 PM
Affalterbach's Avatar
Registered User
iTrader: (1)
Join Date: Mar 2011
Location: SD
Posts: 333
Received 5 Likes on 3 Posts
Originally Posted by Anton_Chigurh
What speed do you do on HWY?
70-80 every time I'm on a highway. We've got pretty big open highways here, mostly all 4-5 lane each side. If you do 65 here everyone and their mother is passing you. 75 seems to be the norm. 2-3 times a day I go WOT to get on the highways and merge onto them doing 70ish. That is probably the cause of low mpgs.
 
  #45  
Old 04-07-2011, 09:43 PM
Anton_Chigurh's Avatar
Registered User
Thread Starter
iTrader: (1)
Join Date: Dec 2010
Location: Gillette Stadium
Posts: 2,513
Received 59 Likes on 51 Posts
Originally Posted by Affalterbach
70-80 every time I'm on a highway. We've got pretty big open highways here, mostly all 4-5 lane each side. If you do 65 here everyone and their mother is passing you. 75 seems to be the norm. 2-3 times a day I go WOT to get on the highways and merge onto them doing 70ish. That is probably the cause of low mpgs.
Most likely part of it
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Would you get better MPG's if you only fill your car up to the 1/4 mark?



All times are GMT -4. The time now is 01:34 PM.