The highway is 65mph. I tend to do about 55-60 as the end of it goes down to 55 anyways so I waste less energy getting up an additional 5-10mph. My only alternate route takes me over some very hilly terrain. I know my MPG on that 30mph road is less than that of the 55-60mph stretch. There are two large hills that just eat my MPG. I will have to check the alignment and the spark plugs. Oh and I noticed some goof ball overfilled the engine with oil so I need to get that fixed this weekend! Sigh... uneducated people assuming 4quarters no matter the car... I travel very often with a passenger thus the desire to go to full on race seats that weight around 9lbs versus what I expect is a 35lb seat in the car now. I will look for blake's posts and see if I can gleem some Insight. Oh man that was a really bad joke!