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Suggested Aerodynamic Mods for a Cobalt
Hello all,
I never formally introduced myself, So i'll take care of that first. I'm a computer engineer from Canada. I first got into Hypermiling with a 2005 diesel smart car. I was averaging about 3.5L/ 100 km tanks, and had a best ever run of 2.7L/100 km on a 100km highway trip. My best tank was about 3.2L / 100km. I do a lot of highway driving, so aerodynamics are key. I do have my scanguage and rely on it.
The smart car gave me trouble, and i ended up selling it. I bought a 2007 Chevy Cobalt, 5 spd. (hey, when i bought it, it was dirt cheap). It actually does very well on the highway. I've managed a best ever run of 4.7L / 100km, and i'm averaging about 6.0L / 100km (i believe it's rated around 8.1L/100 km mixed city hwy)since i've owned it. However, i've hit an impass. I can't get better mileage without driving 70km/hr on the highway, NASCAR style drafting, or doing pulse and glide on the busiest truck route/highway in North America (Surprisingly, it's in canada... Who woulda thunk).
I'm planning on switching to synthetic oil and transmission fluid soon, and now i want to consider aerodynamic mods.
What does the collective wisdom of teh interwebs suggest?
Discuss.
-Steve
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