BryanS2k

I've been getting 180 miles to the tank the past 4-5 tanks and I'm wondering if anyone ever experinced this? I'm driving as I usually do and most of my travels are only highway speeds.

I use to get anywhere from 200-220 to the tank.

bryan

1FastS2k

I can't express this enough. Check your air pressure. I also do alot of highway traveling and noticed my mileage was down, so I checked my pressure. 22/25 in front 41/30 in the rear! I gained an extra 5 mi per gallon by putting them all 33 psi cold.

If that doesn't help, I'd also change your gas.

NNY S2k

Use the cruise contol on the highway.

Destiny2002

Winter, longer warmups, much more gas dumped through the engine.

BryanS2k

I do not expect it is the gas I am using because it is a same gas station I have been using for the life of the car. My tire pressures are checked by me just about every weekend and as for cruise control I don't really believe it considering that I have been making the same trip the since the life of the car and have not changed anything. I'm also a bit skeptical about the winter idea considering it's been cold for a while now. I'm thinking that I'll reset the ecu and see how it affect's the car.

bryan

speed_bump

Reset the ECU and pull your MAP sensor and tap on it to reset it.

hoof

My mpg was dropping a few months back. There was also hesitation above 6k rpms when accelerating hard. A new MAP sensor fixed both problems. If you're experiencing hesitation at high RPMs, try removing the MAP sensor, tapping on it, and putting it back. If your S starts behaving correctly for a little while, then you probably need a new MAP sensor. They run about $42 or so depending where you get it.

S2KYSK

It could be that your favorite gas station is adding methonol in the gas to make it more environmentally friendly during winter months(oxygenation). Some states I believe is required by law to do this and is posted with very small sticker on the pump.

geezer

[QUOTE]Originally posted by 1FastS2k
[B]I can't express this enough.

Gernby

I rarely get more than 190 miles out of a tank. The cold weather will reduce mileage, since cold fuel sprays in larger droplets, and doesn't mix with the air as well. Cold air and fuel make for more power, but reduced efficiency.