Lost 3.6 mpg, what'd I do??? - Page 2 - Fuelly Forums

Android Users - Coming Soon! - Migrating from aCar 4.8 to 5.0

Reply
 
Thread Tools Display Modes
 
Old 09-30-2009, 05:38 PM   #11
Registered Member
 
bowtieguy's Avatar
 
Join Date: Oct 2008
Posts: 1,873
Country: United States
Location: orlando, florida
start w/ the fuel filter. it's incredibly inexpensive and very simple to change on a chevy truck.

the tranny service needs to be done at some point, so if it's due...
__________________

bowtieguy is offline   Reply With Quote
Old 09-30-2009, 05:54 PM   #12
Registered Member
 
bowtieguy's Avatar
 
Join Date: Oct 2008
Posts: 1,873
Country: United States
Location: orlando, florida
clencher could be on to something. i looked at the recorded, yet very limited fill-ups and the previous 19.2 mpg in a 4X4 could be a stretch. and the recent fill just balanced an inflated number.
__________________

bowtieguy is offline   Reply With Quote
Old 09-30-2009, 08:55 PM   #13
Registered Member
 
CHVYPWR's Avatar
 
Join Date: Jun 2009
Posts: 24
Country: United States
The trans fluid is pretty fresh. I have a slow leak in the transfer case input seal which allows fluid to flow from the trans to the t-case, so I'm adding a fresh qt about once a month and draining the t-case down also. I have a seal, just havn't had the time yet. But, a filter change is going to get done soon, probably the same time I do the seal.

So, short fill-ups arn't good practice for FE huh? Well, thats good info, I'll keep that in mind.

Disappointed in my mpg, I went out tonight and installed a 75% grille block. I'll have pics of that up tomorrow.
CHVYPWR is offline   Reply With Quote
Old 10-01-2009, 04:33 AM   #14
Registered Member
 
Join Date: Oct 2006
Posts: 245
Country: United States
run another tank or two and see what you get then.
__________________
"Sylvie" 2000 Honda Insight 5 Speed


LxMike is offline   Reply With Quote
Old 10-01-2009, 10:09 AM   #15
Registered Member
 
theholycow's Avatar
 
Join Date: Apr 2008
Posts: 6,624
Country: United States
Send a message via ICQ to theholycow Send a message via AIM to theholycow Send a message via MSN to theholycow Send a message via Yahoo to theholycow
Short fills aren't terrible, but they don't give you useful data like a fill from empty does. You have to average a lot of them together before their data becomes meaningful.
__________________
This sig may return, some day.
theholycow is offline   Reply With Quote
Old 10-01-2009, 03:59 PM   #16
Registered Member
 
CHVYPWR's Avatar
 
Join Date: Jun 2009
Posts: 24
Country: United States
Quote:
Originally Posted by theholycow View Post
Short fills aren't terrible, but they don't give you useful data like a fill from empty does. You have to average a lot of them together before their data becomes meaningful.
Good to know!

Heres my post on my new grille block: http://www.gassavers.org/showthread....423#post142423
CHVYPWR is offline   Reply With Quote
Old 10-01-2009, 04:50 PM   #17
Registered Member
 
Join Date: Sep 2009
Posts: 11
Country: United States
How's your oil level? An overfull, or fully filled crank case uses more fuel than a half hash mark oil level. Jim
__________________
2005 Astro 8 passenger van... plain jane...
I am Jim. She is AstroTurf, and yes she is fun to roll around in.
2005 Astro 8 passenger van... plain jane...
Nokian WR G2 SUV 215/70 16R
Dyna Beads Dynamic Balancing Solution
Aquapel Glass Treatment
Sylvania Xtravision
Pro-Cut PFM On-Car Lathe
astroturf is offline   Reply With Quote
Old 10-10-2009, 02:38 PM   #18
Registered Member
 
shatto's Avatar
 
Join Date: Sep 2008
Posts: 345
Country: United States
I recently had a 1 MPG drop off after three tanks of 18.9 MPG. Asked Leon, who runs the Costco station about Winter Blend and he said my mileage should increase with it. But we don't have it here yet.
Supporting OPEC to the tune of $40.00 or more a day, I've gotten pretty good at the art of topping off, but as the experts previous to me have said, as complete a fill as possible is most accurate, as is more than one tank of gas.
__________________
I use and talk about, but don't sell Amsoil.
Who is shatto?
06 4.7 Tundra replaced a 98 Dakota 3.9.
623,000 miles on original engine and transmission, using Amsoil by-pass filters and lubrication.
+Everybody knows something you don't know.
+Artists prove truth can be in forms you don't understand.

Low-Risk Option Trader
Retired Pro-Hunter featured in; 'African Hunter', by James R. Mellon III. and listed in; Rowland Ward's Records of Big Game.
shatto is offline   Reply With Quote
Old 10-18-2009, 02:40 PM   #19
Registered Member
 
brucepick's Avatar
 
Join Date: Feb 2007
Posts: 722
Country: United States
Location: Connecticut
With all due respect to Leon, up till now I've only seen and heard of mpg dropping off with winter fuel mix and coming back up when we go back to the 'summer' stuff. I track mpg with every fillup and I've seen it every year since I started in Feb. '07.

I'm sure some of the winter decrease is due to sucking off engine heat to stay comfortable inside the cabin. But I think the fuel change is a big part of the reduced winter mpg's I've seen.
__________________

__________________
Currently getting +/- 50 mpg in fall weather. EPA is 31/39 so not too shabby. WAI, fuel cutoff switch, full belly pan, smooth wheel covers.

Now driving '97 Civic HX; tires ~ 50 psi. '89 Volvo 240 = semi-retired.
brucepick 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
Not very precise mpg calculation larjerr Fuelly Web Support and Community News 4 08-20-2012 02:03 AM
Tools you keep in the car? GasSavers_maximilian Experiments, Modifications and DIY 57 10-08-2009 09:41 PM
Keeping my distance in traffic khurt General Fuel Topics 8 09-07-2008 04:23 AM
Electrical power and cars. DracoFelis Automotive News, Articles and Products 2 09-16-2006 02:31 PM
Congratulations Jared!!! SVOboy General Discussion (Off-Topic) 7 08-13-2006 09:55 PM

Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 01:00 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.