What is your fuel mileage on your stock/lightly modded 4th gen F-body?
01-17-2011, 07:00 PM
#44
V6 z28 450+ miles per tank "before recent troubles with o2s" now closer to 400.
Old z28 w/3.23 gears and a4. 375-390 mpt if it was babied.
I need to get the ws6 on a road trip to compare.
Also just descreened maf, did and did free ram air and degilled my stock lid on the v6 hoping to pick up 2 mpg..
For what it's worth I've seen dramatic increases with RP oil as compared with Dino oil
Old z28 w/3.23 gears and a4. 375-390 mpt if it was babied.
I need to get the ws6 on a road trip to compare.
Also just descreened maf, did and did free ram air and degilled my stock lid on the v6 hoping to pick up 2 mpg..
For what it's worth I've seen dramatic increases with RP oil as compared with Dino oil
01-17-2011, 07:15 PM
#45
Mods in sig. Can say I have got less than 18 mpg, thats after a trip to the dragstip and driving home also (i think I got 4 passes in). Mixed city/highway is 24-25, all highway is 30.
01-18-2011, 11:07 AM
#47
On The Tree
iTrader: (1)
Join Date: Jan 2011
Location: levittown, pa
Posts: 177
Likes: 0
Received 0 Likes
on
0 Posts
01 Z28 stock auto (as far as i know it's stock). 15mpg is about average for me with mostly suburban traffic (lots of traffic lights but overall avg mph is probably 30'ish.). I have a heavy foot so take what you will from that.
I have yet to give it a decent highway trip to see what cruising mpg is.
I have yet to give it a decent highway trip to see what cruising mpg is.
01-23-2011, 02:12 AM
#50
On The Tree
Join Date: Oct 2009
Location: Arizona
Posts: 135
Likes: 0
Received 0 Likes
on
0 Posts
Good one. " 11-27 depending on how much fun I am having "
nascarnate wins the best answer of the Post.
Its Chevy Muscle Man... it ain't no fricken Prius Hybrid.
I hit 250 to 275 per Tank and mash on 'er every chance I get.
Everyone has an opinion - here's mine. I hit the trip meter every fill -up. When u fuel, fill it up. Don't get $ 10.00 worth unless your budget is that tight, and if it is, maybe u should get a hybrid.
Use the same fuel everytime. Out West, I have had the best luck with Shell fuel. BP is good but we don't have it here.Back east, Marathon is Top Rated... Do some comparisons and check out the recent consumer reports or google for reviews.
Use 93 Octane EVERYTIME. Don't believe the hype, you will get at least 25 more miles / tank and your engine will love you for it. Throw some Lucas Octane Boost in every once in a while, keep the oil clean ( synthetic preferably ) and check your air filter and tire pressure frequently.
Have a good day and mash on 'er every chance you get.
nascarnate wins the best answer of the Post.
Its Chevy Muscle Man... it ain't no fricken Prius Hybrid.
I hit 250 to 275 per Tank and mash on 'er every chance I get.
Everyone has an opinion - here's mine. I hit the trip meter every fill -up. When u fuel, fill it up. Don't get $ 10.00 worth unless your budget is that tight, and if it is, maybe u should get a hybrid.
Use the same fuel everytime. Out West, I have had the best luck with Shell fuel. BP is good but we don't have it here.Back east, Marathon is Top Rated... Do some comparisons and check out the recent consumer reports or google for reviews.
Use 93 Octane EVERYTIME. Don't believe the hype, you will get at least 25 more miles / tank and your engine will love you for it. Throw some Lucas Octane Boost in every once in a while, keep the oil clean ( synthetic preferably ) and check your air filter and tire pressure frequently.
Have a good day and mash on 'er every chance you get.
01-23-2011, 03:25 AM
#52
Banned
iTrader: (20)
Join Date: Apr 2009
Location: Inside Your Girlfriend
Posts: 1,120
Likes: 0
Received 0 Likes
on
0 Posts
Hey guys, I put together a thread with a quick list to show Mods vs MPG; take some time to post 
Just cut and past the list I create in post 1 and fill in the info if you got it
https://ls1tech.com/forums/general-l...g-vs-mods.html
DM
Just cut and past the list I create in post 1 and fill in the info if you got it
https://ls1tech.com/forums/general-l...g-vs-mods.html
DM
01-23-2011, 07:08 PM
#53
TECH Regular
iTrader: (19)
Join Date: Aug 2010
Location: +Evil Empire+(951)
Posts: 418
Likes: 0
Received 0 Likes
on
0 Posts
[QUOTE=TheBlueKnight;14361140][QUOTE=Ruthless909;14357394]Makes me kinda miss my 07 Civic SI
Yea, our 07' Civic SI routinely gets 41mpg if you don't go faster than 70mph on the hwy.
My Full bolt on Trans Am (minus UD Pulley)/ and Tune gets 31mpg on the hwy. Went about 204 miles with 6.5 gallons. And that's not going faster than 70mph as well. Niiice FA5!
Stock?
Yea, our 07' Civic SI routinely gets 41mpg if you don't go faster than 70mph on the hwy.
My Full bolt on Trans Am (minus UD Pulley)/ and Tune gets 31mpg on the hwy. Went about 204 miles with 6.5 gallons. And that's not going faster than 70mph as well.
Stock?
01-29-2011, 12:20 AM
#57
Banned
iTrader: (20)
Join Date: Apr 2009
Location: Inside Your Girlfriend
Posts: 1,120
Likes: 0
Received 0 Likes
on
0 Posts
Hey guys, I put together a thread with a quick list to show Mods vs MPG; take some time to post
Just cut and past the list I create in post 1 and fill in the info if you got it
https://ls1tech.com/forums/general-l...g-vs-mods.html
DM
Just cut and past the list I create in post 1 and fill in the info if you got it
https://ls1tech.com/forums/general-l...g-vs-mods.html
DM
01-29-2011, 08:54 AM
#58
TECH Apprentice
iTrader: (31)
Join Date: Jul 2010
Location: Loganville, Ga
Posts: 301
Likes: 0
Received 0 Likes
on
0 Posts
I'm haveing the same problem, I recently filled my up and ran it to empty I got exactly 190 miles. I have to fill her up to day But it usely takes 13 gallons to fill up so I average 14.6 miles a gallon all city driving shifting at 2200 rpm. I would love to get 240-250 per tank I wounded if my pump assembly is bad. Mods are intake, lid& bellow, exhaust,full suspension, I'm about to swap in a 228R cam and I have heard people getting really shitty gas mileage I hope that's not the cause with me
01-29-2011, 01:18 PM
#59
Staging Lane
iTrader: (1)
Join Date: Aug 2010
Location: Fresno, CA
Posts: 73
Likes: 0
Received 0 Likes
on
0 Posts
In my last T/A (bone stock M6 with a flowmaster) mixed 50/50 city/hwy i would always crack 300 mpt so that was roughly 20mpg and kept me happy.
In my current T/A (bolt on's and 4.10s)
All city 190 mpt
All highway i've gotten 25+mpg so my mpt was 360+ (2k rpm about 80mph with gears)
Mixed hwy/city ill get around 270mpt
Hope you start seeing better numbers
In my current T/A (bolt on's and 4.10s)
All city 190 mpt
All highway i've gotten 25+mpg so my mpt was 360+ (2k rpm about 80mph with gears)
Mixed hwy/city ill get around 270mpt
Hope you start seeing better numbers
01-30-2011, 01:30 AM
#60
Staging Lane
iTrader: (7)
Join Date: Feb 2007
Location: Sumter, SC
Posts: 77
Likes: 0
Received 0 Likes
on
0 Posts
i've got a 99 M6 with 97k on the clock. mods are :
-flowtech longtubes
-ORY
-SLP loudmouth cat-back
-SLP cold air package
did an 1100 mile road trip about a month back and got anywhere from 295-335 miles to a tank when the check gauge light came on (there would be about 4 gal left when the light came on)
-flowtech longtubes
-ORY
-SLP loudmouth cat-back
-SLP cold air package
did an 1100 mile road trip about a month back and got anywhere from 295-335 miles to a tank when the check gauge light came on (there would be about 4 gal left when the light came on)