at 70 the rpm's are at 3k and in my cobalt they were 2400 about

 

Wify's hasn't reset the DIC in her LS for many many months now and its reading 33.7...I check it when I check her oil percentage. Last time I peeked she had 312 miles and was above the half mark on gas.Asked her how far she gets and got the usual..I don't know.

 

To give you an update. I now have 3200 miles on the odo and took a trip today, freeway driving and averaged 34.2 Yahoo!!!!. I do think the flexfuel sensor has something to do with the poorer mileage, because a blend of ethanol is in most fuels now. Does anyone know how to remove the sensor or what to recommend as far as a gas additive goes? Half of my tank was Chevron Premium without the ethanol, and dropped lower when I put the blend in it. Thanks...