75-80mph FE endurance test :D - Fuelly Forums

Click here to see important news regarding the aCar App

Reply
 
Thread Tools Display Modes
 
Old 09-30-2007, 04:49 AM   #1
Registered Member
 
1993CivicVX's Avatar
 
Join Date: Aug 2007
Posts: 1,069
Country: United States
Send a message via AIM to 1993CivicVX
75-80mph FE endurance test :D

Pumped up the tires to 50 in the front and 53 in the rears. The whole tank of 444 miles averaged just a smidge under 44mpg but I'm calling it 44 because I think the actual mileage may have been more than 444 as we didn't know how many miles we drove around Dartmouth and surrounding areas (I guestimated 20). 44mpg isn't too bad. At Dartmouth it was pretty gas wasting the way we were once again testing the brakes. Accell, brake accell brake accell brake all over campus. Also, did some idle revving and idling and what not when trying to solve the problem of the sticking and roaming idle and trying to find the vacuum leak.

But I think the mileage may actually have been better because I don't trust that gas station where I filled up!! I have a 10.0 gallon tank, right? Is there a reserve? Is it possible to put more than 10 gallons in my tank without topping off? The attendant put in 10.1 gallons without topping off and 10.3 with topping off. I'm like.. uhh... ?? but I didn't say anything. I did NOT feel like I was about to run out of gas. The needle wasn't buried below E or anything like that. It had just started to bobble below E. About 50 miles prior it was a little less than 1/4 of a tank. And if you remember, the last tank I filled up at the exact same pump let alone same station, it was 9.662 gallons when my needle had only just arrived at E about 30 miles ago. Granted it was below E most of the the last 25 miles. Still I smell a rat. Anyway, what do you VX owners think!?!? The needle had only gotten to the E about the last 40 miles of this tank. And the last 20 miles were driving at more reasonable speeds. Still, 44mpg at 75-80mph on the freeway isn't too bad. There was some high speed P&G in there to take advantage of the extensive hills, some pack driving/mild drafting. But much of it was bombing away solo on the highway. There was a moderate headwind on the way there of about 7mph. Roughly 120 of the miles were not driven on the
highway.

I think I am going to bring a 5 gallon can and fill it up all the way with the gas from the station across the street. Then put that gas in my car. Then walk across the street and fill up the gas can from the same pump I filled my car's last two tanks. Compare how much gas the two stations filled the can with. Will it be the same? It's really had to believe a gas station would have their pumps miscalibrated, especially by as much as 5 or 10%!! 0.5% I suppose I could understand, but this is looking like much more than that.

------------
switching gears but still related to the FE of my car...

SVOboy, Wombosi and I all agree my car seems to be rolling less freely than other cars. We think it is the wheel bearings. They just don't spin well at all when the drum of the brakes are off. So this could also be effecting my FE. Pumping the tires up to 50psi had no ill effects that I could notice. Didn't even notice a rougher ride. I did seem to notice the car rolls a bit better at the higher PSI tho. Some of the hills I maintained 75-80mph down in neutral.
__________________

__________________
three stripes the charm!

Car mods are overrated. Just gotta adjust that nut behind the wheel for best mpg.



Forget about World Peace...Visualize using your turn signal.
1993CivicVX is offline   Reply With Quote
Old 09-30-2007, 05:27 AM   #2
Supporting Member
 
lovemysan's Avatar
 
Join Date: Jun 2006
Posts: 595
Country: United States
Quote:
Originally Posted by 1993CivicVX View Post
So Wombosi and I drove out to Dartmouth college where SVOboy did some werk on meh car. Cleaned the IACV and replaced the PCV and diagnosed a vacuum leak. And cleaned the EGR a little, although we weren't able to get it off the hegemony because the bolts were too tight. Needed to have soaked the bolts in PB blaster for 24 hours or so. Thanks again Benjo!

Pumped up the tires to 50 in the front and 53 in the rears. The whole tank of 444 miles averaged just a smidge under 44mpg but I'm calling it 44 because I think the actual mileage may have been more than 444 as we didn't know how many miles we drove around Dartmouth and surrounding areas (I guestimated 20). 44mpg isn't too bad. At Dartmouth it was pretty gas wasting the way we were once again testing the brakes. Accell, brake accell brake accell brake all over campus. Also, did some idle revving and idling and what not when trying to solve the problem of the sticking and roaming idle and trying to find the vacuum leak.

But I think the mileage may actually have been better because I don't trust that gas station where I filled up!! I have a 10.0 gallon tank, right? Is there a reserve? Is it possible to put more than 10 gallons in my tank without topping off? The attendant put in 10.1 gallons without topping off and 10.3 with topping off. I'm like.. uhh... ?? but I didn't say anything. I did NOT feel like I was about to run out of gas. The needle wasn't buried below E or anything like that. It had just started to bobble below E. About 50 miles prior it was a little less than 1/4 of a tank. And if you remember, the last tank I filled up at the exact same pump let alone same station, it was 9.662 gallons when my needle had only just arrived at E about 30 miles ago. Granted it was below E most of the the last 25 miles. Still I smell a rat. Anyway, what do you VX owners think!?!? The needle had only gotten to the E about the last 40 miles of this tank. And the last 20 miles were driving at more reasonable speeds. Still, 44mpg at 75-80mph on the freeway isn't too bad. There was some high speed P&G in there to take advantage of the extensive hills, some pack driving/mild drafting. But much of it was bombing away solo on the highway. There was a moderate headwind on the way there of about 7mph. Roughly 120 of the miles were not driven on the
highway.

I think I am going to bring a 5 gallon can and fill it up all the way with the gas from the station across the street. Then put that gas in my car. Then walk across the street and fill up the gas can from the same pump I filled my car's last two tanks. Compare how much gas the two stations filled the can with. Will it be the same? It's really had to believe a gas station would have their pumps miscalibrated, especially by as much as 5 or 10%!! 0.5% I suppose I could understand, but this is looking like much more than that.

------------
switching gears but still related to the FE of my car...

SVOboy, Wombosi and I all agree my car seems to be rolling less freely than other cars. We think it is the wheel bearings. They just don't spin well at all when the drum of the brakes are off. So this could also be effecting my FE. Pumping the tires up to 50psi had no ill effects that I could notice. Didn't even notice a rougher ride. I did seem to notice the car rolls a bit better at the higher PSI tho. Some of the hills I maintained 75-80mph down in neutral.

It could be cheap bearings. I suggest oem's. And some "nasa super slick grease".
__________________
02 Saturn SL
5 speed
for pics click the link below

https://s75.photobucket.com/albums/i3...emysan/saturn/

[SIGPIC][/SIGPIC]
"for best mileage swap in a d15z1"
lovemysan is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Incorrect Milage Calcuatlion PatM Fuelly Web Support and Community News 4 07-17-2009 07:21 PM
How far do you drive daily? OdieTurbo General Fuel Topics 56 03-31-2007 01:49 AM
Miss matched tires zpiloto General Fuel Topics 4 02-16-2007 12:40 PM
State of the Union address touches on "oil addiction." Matt Timion General Discussion (Off-Topic) 31 02-06-2006 03:38 PM
Where to get parts? What parts do we need? Matt Timion Electric and Solar powered 11 09-19-2005 08:37 PM

» Fuelly iOS Apps
Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 09:06 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.