Recent content by Sethareno

Thanks for the info! In the short time I've had the car (only 4 days!) I've noticed that as long as I keep the rpm's under 2500 it gets great mileage! So anything above 80 on the interstate is no man's land for me! LOL

Hey guys! I just bought a 07 Cobalt LT coupe and am loving it! Just got a job that I'll be driving 140 miles a day so I'm looking to increase my mpg in any way I can! Is there a signifigant increase in mpg going from stock tranny fluid to a full synthetic? If it helps, the car has a 2.2L with...