This weekend i made two trips from Roseburg Oregon to Eugene Oregon. It's about 180 miles round trip each time. So thats around 360 miles, plus the driving i did in town. All together i went 450 miles. My car (1989 Ford Tunderbird) is supposed to get 27 on the freeway, but i have gotten 30 before. This weekend, it seemed to be sipping a bit more than it should. I went around 75mph the whole time. What could cause my Mpg to drop? It had a recent tune up and i keep everything up as well as i can.
-The exhaust tip has a black ring around it, that wasnt there before this weekend.
- When my front rotors get wet, they steam, but i cant feel them dragging, and the car seems to have the same amount of power.
Thats about all i can think of...
2006-12-10 16:52:28 · 6 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
i own a repair shop,,and its possible they may have not gotten the plugs gaped right in it,,this is usually what causes this to happen when they run black like that around the exhaust,you might wan to have it checked out,they may have also used a cheaper plug i it also cheap plugs don't fire good,,id have it checked out,,good luck,i hope this help,s.,,have a good x-mas.
2006-12-10 17:02:42 · answer #1 · answered by dodge man 7 · 0⤊ 0⤋
Oh man I've driven that a lot, mostly flat.
yes 75 miles an hour will hurt your mileage by up to 5mpg or more. The 27mpg is in ideal conditions but is not very realistic. I find most cars only get the suggest mpg at about 45mph with very very few stops. They only get over on very flat ground with a tailwind and lower speeds. Try 72 with cruise and avoid heavy accelerations, should be in the mid to low 20's.
Black ring? hope some one else has the answer to that one.
Steaming rotors, just water spray on the disc.
2006-12-10 17:05:59 · answer #2 · answered by hogie0101 4 · 0⤊ 0⤋
the black ring on the exhaust tip is do to exhaust fumes getting out. this could mean that:
time to change your oil
catalytic(?) converter is going bad
use higher grade gasoline(unless advised otherwise in manual)
solutions:
change your oil
change the catalytic converter
buy this product called Sea Foam from a auto store and put 1/3 of it into the gas tank, 1/3 into the throttle body, and 1/3 into the oil
should help out if not take it to a mechanic(change cat at last resort)
and also to know if catalytic converter is broken or not have someone look at the back of your car while u drive off
:)
2006-12-10 17:08:58 · answer #3 · answered by haroutik88 1 · 0⤊ 1⤋
the 30 figure may have been a fluke, caused by a bad fill up, it should be avg with the one before and after. i can't see a 3900 lb car getting that kind of mpg, my 85 TB only got 25/26 at 70/75 mph and my 90 sc gets 20.5. you didn't give your mpg, but that should make you feel better :)
ps, you may have not got it full on the last fill up so try to avg it in :)
2006-12-10 17:16:14 · answer #4 · answered by Anonymous · 0⤊ 0⤋
tire pressure, needs a tuneup, maybe regap plugs or new ones, as black rings mean it's running rich.
With that boat, 24 mpg is all you could hope for unless you have a tailwind.
2006-12-10 18:00:11 · answer #5 · answered by Anonymous · 0⤊ 0⤋
things wear out. that dude that pumps your gass gave it the low grade stuff, have him slap stick some ejector cleaner in your tank.
fuel dryer and injector cleaner always works wonders
2006-12-10 17:00:33 · answer #6 · answered by Anonymous · 0⤊ 0⤋