Modded Mustang Forums banner

15.5 mpg - How can I improve this?

4762 Views 20 Replies 8 Participants Last post by  AtlanticBlue99
I recently calculated my mileage for my 2001 v6 (stock, no mods). 15.5 seems way too low.

All of my driving is local streets (school, sports, parties, etc), but it still shouldn't be that low I think?

Is this normal, or is there something I should check for? How can I improve my MPG?
1 - 8 of 21 Posts
do a tuneup on ur car and seafoam it
just in case tune up includes:

-oil change
-air filter change
-fuel filter change
{and a lot more but those can change the mpg}

also check your tires if they need air it will drop ur mpg.. believe it or not..


buy it and put 1/3 on the pcv 1/3 fuel and 1/3 on oil (or something like that idk the measurements) after putting it on oil change the oil after 200-300 miles
See less See more

i got quoted with a +1 :D now gimme rep :D

this is the happiest day of my life.... nice time with my g.f and now i get quoted with a +1 :D i cant feel more happier
  • Like
Reactions: 1
thank you :D

now end/whoring
take ur own advice:postwhore
i aint a postwhore...

post count is ****..


and yeah nice Q. chris..
ohh yeah that's another thing bad o2 sensors really **** up the mpg's
well i dont know a exact way but well they are supposed to be change annually so if u haven't done it well do it
  • Like
Reactions: 1
also the rpms would make a lil dance.. but that could be made by 2 things bad o2 sensors or maf..

but its usually the o2 that makes a lil rpm change the maf usually make the big rpm change when bad
1 - 8 of 21 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.