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Old 02-27-2015, 09:56 AM   #1
PassinThrough
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Default Any mpg gurus?

Let me start this by saying I did a quick search but didn't quite know how to word this so no results.

So anyways on my daily commute to work there is a decently large and steep hill that I drive up. Being mpg conscious I was curious which method will use less gas... Basically I either have to be in 5th at like 2500-3000 rpms with ~5 psi or in 4th at about 3200-3500 with 0-2psi. The hill is pretty long, takes a good while to go up, and I feel like it's just eating away at my gas tank. Traffic doesn't usually permit me to go any faster/slower.. any input would be interesting, thanks! Hope it's not too obvious....

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Old 02-27-2015, 11:42 AM   #2
ProfessWRX
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Quote:
Originally Posted by PassinThrough View Post
Let me start this by saying I did a quick search but didn't quite know how to word this so no results.

So anyways on my daily commute to work there is a decently large and steep hill that I drive up. Being mpg conscious I was curious which method will use less gas... Basically I either have to be in 5th at like 2500-3000 rpms with ~5 psi or in 4th at about 3200-3500 with 0-2psi. The hill is pretty long, takes a good while to go up, and I feel like it's just eating away at my gas tank. Traffic doesn't usually permit me to go any faster/slower.. any input would be interesting, thanks! Hope it's not too obvious....

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Log and average injector pulsewidth doing both methods. Then there's no guessing.
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Old 02-27-2015, 10:02 PM   #3
Uncle Scotty
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you do NOT want to use a higher gear and more throttle/boost

that is a bad idea

and if you are this worried about bloody mpg...sell the damned car and get a volt ferchrissake
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Old 02-27-2015, 10:02 PM   #4
Uncle Scotty
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oh....

THIS thread is one of the MOST ridiculous threads ive EVER seen posted here on NASIOC
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Old 02-27-2015, 10:38 PM   #5
meinct
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^^^this. Your better being in a lower gear with little to no boost. Even with the higher rpm no boost should use less gas.

^^^also this. Unless this hill is like 10 miles long and 30+ incline it is not affecting your mpg enough to matter.
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Old 02-27-2015, 10:51 PM   #6
PassinThrough
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Ok cool. Kind of what I was thinking, I've been dropping to fourth the last couple days. Actually when I was car shopping it was between the wrx and a volt. Funny you should say that.

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Old 02-27-2015, 11:15 PM   #7
dark hawk
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Quote:
Originally Posted by Uncle Scotty View Post
you do NOT want to use a higher gear and more throttle/boost

that is a bad idea

and if you are this worried about bloody mpg...sell the damned car and get a volt ferchrissake
This. It's like buying a road bike and using it for mountain biking
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Old 02-28-2015, 02:22 PM   #8
powersuber
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You can always log your mpg by starting your trip odometer when you fill up and then the next time you fill up divide how many miles you drove by how many gallons you pump


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Old 03-04-2015, 02:03 PM   #9
tebriel
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Regardless of MPG, boosting low rpm in 5th is bad news bears.
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Old 03-04-2015, 06:56 PM   #10
Ernest
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I have a speed bump on my commute, would my mpg be better if drive around it with the left wheel, the right wheel off or just go over with both wheels. Anyone?
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Old 03-04-2015, 07:35 PM   #11
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Quote:
Originally Posted by Ernest View Post
I have a speed bump on my commute, would my mpg be better if drive around it with the left wheel, the right wheel off or just go over with both wheels. Anyone?
Neither actually, you're pretty screwed. I'd recommend saving your gas money and buying a bus ticket instead.
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Old 03-04-2015, 09:23 PM   #12
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Quote:
Originally Posted by Ernest View Post
I have a speed bump on my commute, would my mpg be better if drive around it with the left wheel, the right wheel off or just go over with both wheels. Anyone?
throw another banana peel an some old beer in the Mr. Fusion and just fly over
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Old 03-06-2015, 09:15 AM   #13
ProfessWRX
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Quote:
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throw another banana peel an some old beer in the Mr. Fusion and just fly over
Mr Fusion only supplies 1.21 gigawatts to the flux capacitor, not to the mobility of the car.
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