mods for fuel mileage?
Veteran
Joined: Jan 2008
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RE: mods for fuel mileage?
its been proven adding named brand stickers to your back window increases mpg by 2 each sticker and gives you 5 xtra horses... i too have a dual exhaust and k&n cai. i get around 13ish in town and somewhere around 18 or 19 highway
Veteran
Joined: Dec 2004
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RE: mods for fuel mileage?
ORIGINAL: Skeeter_Eater
is there anything i can put on my pickup to increase the fuel mileage by 3 mpg w/o spending over $500. It's an '02 with the 4.7 w/ the 20's.
is there anything i can put on my pickup to increase the fuel mileage by 3 mpg w/o spending over $500. It's an '02 with the 4.7 w/ the 20's.
Veteran
Joined: Dec 2007
Posts: 316
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RE: mods for fuel mileage?
Search on Ebay... I bought a AFE CAI that goes all the way down into the wheel well for $95 + plus shipping ... Normaly go for $250-300 ... But u need to search around everyday sometimes it takes a little while to find a good deal.
Champion
Joined: Aug 2005
Posts: 3,313
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RE: mods for fuel mileage?
As far back as 1998
Ford tried to make a bed tonneau 'standard equipment'
on F150s so that they could claim the extra 1 MPG on highway
and avoid 'gas guzzler' fines on their entire Ford Fleet 'C.A.F.E' requirement
but the EPA disallowed this....don't ask me why.....
It was reported by USA Today Car Reviewer James Healey
in his 1998 review of the F150
The automakers have testified under oath to Congress
that they can reduce the weight of vehicles
for about $2 per pound of weight removed.
Weight reduction is one way to improve both
city MPG and acceleration
at the same time.
There is a safety downside.
Long ago in 1991 the automakers were required to respond 'under oath'
to what individual mods would improve MPG by what percent
and your tax dollars were then used to make a book on the subject
that is free online to view,
and here is a summary table from the back of that book:
http://books.nap.edu/openbook.php?is...ge=198#pagetop
Note that in the old 1991 table
Chrysler responded that a 0.5 increase in compression ratio would improve MPG by 1%,
and the 2009 5.7 Hemi redesign improves compression ratio by 1.2
which along with other mods
including variable valve timing which Chrysler says in the table improves by 1.5%
gave a total 4% fuel economy improvement for the 2009 Hemi
according to the recent Feb 2008 Dodge press release at the auto show.
Ford tried to make a bed tonneau 'standard equipment'
on F150s so that they could claim the extra 1 MPG on highway
and avoid 'gas guzzler' fines on their entire Ford Fleet 'C.A.F.E' requirement
but the EPA disallowed this....don't ask me why.....
It was reported by USA Today Car Reviewer James Healey
in his 1998 review of the F150
The automakers have testified under oath to Congress
that they can reduce the weight of vehicles
for about $2 per pound of weight removed.
Weight reduction is one way to improve both
city MPG and acceleration
at the same time.
There is a safety downside.
Long ago in 1991 the automakers were required to respond 'under oath'
to what individual mods would improve MPG by what percent
and your tax dollars were then used to make a book on the subject
that is free online to view,
and here is a summary table from the back of that book:
http://books.nap.edu/openbook.php?is...ge=198#pagetop
Note that in the old 1991 table
Chrysler responded that a 0.5 increase in compression ratio would improve MPG by 1%,
and the 2009 5.7 Hemi redesign improves compression ratio by 1.2
which along with other mods
including variable valve timing which Chrysler says in the table improves by 1.5%
gave a total 4% fuel economy improvement for the 2009 Hemi
according to the recent Feb 2008 Dodge press release at the auto show.
