Re: Cobalt Challenge
Depends on priorities. Lean burn can give you better fuel economy, but at the expense of emissions. Even when new, the VX fed wouldn't pass Carb regulations. Now, with increasing population and vehicles on the road, more states are adopting the Carb levels. IIRC, it's 14 now.
It isn't just emissions. Safety standards have improved also.But mainly, the horsepower wars have played a big part in reducing fuel economy. Many family cars now available, are faster than sports cars of the '70s and early '80s.
Back to the ecotec, I love the top access oil filter cartridge. Wish more of my cars had that.
The aerodynamics and manual already give your cobalt an advantage over my HHR. I've tried a WAI without any change in economy. I do use it during the winter since it seems to speed up the warm up time. In the past, I had an air dam under the bumper made from landscape edging. I've been meaning to install a sturdier one.
Does the Cobalt have a habit of developing noises from the front end, mainly the anti-sway bar and its linkages?
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