Is "summer" gas back now?

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Old Apr 15, 2008 | 07:43 AM
  #16  
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warmer air = less dense = less hp and less gas used due to expansion = better mpg

i am not a scientist and could be a little off, but our cars love cold air, but warmer air helps with mpg a little more. Plus I bet, like me, the heater is not being used as much if at all anymore.
Old Apr 15, 2008 | 08:36 AM
  #17  
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Originally Posted by VRT Gump
warmer air = less dense = less hp and less gas used due to expansion = better mpg

i am not a scientist and could be a little off, but our cars love cold air, but warmer air helps with mpg a little more. Plus I bet, like me, the heater is not being used as much if at all anymore.
yeah, but soon people will use the A/C which robs you of way too much hap and mpg...I rarely use mine
Old Apr 15, 2008 | 09:22 AM
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Originally Posted by VRT Gump
warmer air = less dense = less hp and less gas used due to expansion = better mpg

i am not a scientist and could be a little off, but our cars love cold air, but warmer air helps with mpg a little more. Plus I bet, like me, the heater is not being used as much if at all anymore.
how does the heater rob of mpg?
Old Apr 15, 2008 | 09:33 AM
  #19  
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I just checked, getting around 48mpg... on my bike. But yeah I did notice a few better MPG on the fuel computer in the R32 as well.
Old Apr 15, 2008 | 09:41 AM
  #20  
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Originally Posted by STi-owns-evo
how does the heater rob of mpg?
In cooler weather, if you have condensation on your windows, running the heat and the A/C will defrost very quickly.
Old Apr 15, 2008 | 12:14 PM
  #21  
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I was feeling like my car was snappier lately....
Old Apr 15, 2008 | 12:18 PM
  #22  
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Originally Posted by wu!
In cooler weather, if you have condensation on your windows, running the heat and the A/C will defrost very quickly.
oh, so it basically just comes down to using A/C.

haha, I obviously was over thinking because I was thinking along the lines of, taking heat from the coolant drops motor temps a few degrees which will result in more absorption of heat which results more power loss in combustion because the heat has other places to go then just expanding.
Old Apr 15, 2008 | 12:30 PM
  #23  
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Originally Posted by Dnayukns
Summer gas = Gas expands when its warmer so you getta "fuller" tank. Make sure you dun fill it to the top, cause it'll overflow when it gets really hot.

another reason to fill up in the early morning.
Old Apr 15, 2008 | 05:44 PM
  #24  
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No you are right.....there is something they change in the summer gas............although I haven't noticed it fully.......I thought the exact same thing in my sti last week.........it felt like it was running better at least but that difference could just be between 2 gas stations or in my head.

my 97 l that i drive 100 miles a day in I dont like to floor so I can perserve it so who knows....prob wouldn't tell a difference in that anyways.
Old Apr 15, 2008 | 06:43 PM
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ive been getting 20-22 mpg in my 2.5L pretty crappy.

My Miata gets 31mpg going 65 and 21mpg going 80 lol 4K RPMS@ 80mph FTW!

RX8 guys, what are you getting? factory is 16/20 mpg...hopefully youre getting that. Nothing beats a rotary though.



oh yeah, whats A/C? you mean the button you press a dozen days a year? lol

not only does it lag your belts, it weighs like 50lbs!
Old Apr 15, 2008 | 07:51 PM
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27.5MPG on stage 2 93oct. last tank. I would say that is phenominal.
Old Apr 15, 2008 | 07:55 PM
  #27  
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^ i dont understand that. how can an NA 2.5 only get 22 mpg? maybe i need a tune up
Old Apr 15, 2008 | 09:22 PM
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Originally Posted by matthepcat
27.5MPG on stage 2 93oct. last tank. I would say that is phenominal.
how the hell......

I got 22.5 on this last tank! I'm running stage 1 with a catless up-pipe though
Old Apr 15, 2008 | 11:05 PM
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Originally Posted by matthepcat
27.5MPG on stage 2 93oct. last tank. I would say that is phenominal.
Highest I've ever gotten is 27.2mpg on my trip from San Ramon to Pomona, going ~ 80mpg the entire way on 5. One of the few times I saw myself hit over 400miles per tank!
Old Apr 15, 2008 | 11:39 PM
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my car still sucks up gas lol the avarage for me is about 250



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