Does 9 MPG sound right?
01-09-2009, 11:31 AM
#1
1st Gear Member
Thread Starter
Join Date: Dec 2008
Location: Pennsylvania
Posts: 50
Does 9 MPG sound right?
Well if my calculations are right i am getting around 9 mpg. My odometer is 20 miles off for every 100. sow it would show 80 miles. I have been very light on the gas, and its been city driving. Its all stock, and i bought it this summer its got 200K miles. Can this be a indication of bad vacum leak?
01-09-2009, 12:01 PM
#3
SVT Section Moderator
Join Date: Jul 2008
Location: Burnt Hills, NY
Posts: 15,601
...You're going to loose some MPG during the winter months! ...have you looked into getting a new speedo gear for your car?!
...Also, when's the last time you tuned the car up? ... & making a lot of shorts trips?
...Also, when's the last time you tuned the car up? ... & making a lot of shorts trips?
Last edited by Timspony; 01-09-2009 at 12:51 PM.
01-09-2009, 12:28 PM
#5
3rd Gear Member
Join Date: Sep 2007
Location: Florida
Posts: 761
Getting a tune up isn't a bad idea, but it sounds like you had gears installed in your car without changing out the speedometer gear. Because of this both your odometer and your speedometer are inaccurate so if you are using the odometer to calculate your mpg you will not get an accurate result. You said it only shows 80 mi for every 100 mi you drive so you are most likely getting better than 9 mpg since you are diving farther on each tank of gas than your odometer would indicate.
01-09-2009, 04:07 PM
#8
fill it up and mark your mileage. when you fill it up again do the math of your actual mileage. That is the only way to know unless you change the speedo gear on the transmission.
Last edited by TrimDrip; 01-10-2009 at 02:50 AM.
