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Sedans Chevrolet Cobalt Chevrolet Cobalt Real World MPG
295 messages, Last post on Nov 23, 2009 at 4:23 PM
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My Cobalt LS (4-door sedan) auto gets about 27 mpg average (mostly city driving) and gets about 31-34 mpg on hwy. I usually keep my tires at 32 psi as my door panel says 30 psi, is that bad for my tires. How can I get more mpg out of my car? Did change the spark plugs 3 weeks ago, and actually gave my car 1 mpg more when I start the engine.
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Replying to: pa356228 (Apr 19, 2009 9:48 pm) |
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Replying to: pa356228 (Apr 19, 2009 9:48 pm) By the way I see it, you should the one giving some advice instead of asking for some. I could add that a clean and well waxed car helps the m/p/g to. For your tire pressure, 32 p.s. i. isn't that bad but the ride must be a bit bumpy? |
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Yeah, the ride is a little bit bumpy, Should I just go by the door panel psi on tires for safe bet? I know I should be giving some advice. My only advice to give is to keep checking your tires and psi, and also change the oil, pcv valve and all filters every 3,000 miles. Pre-trips inspections is great for your car which can help you in the long run and also saves you costly repairs. Also, drive solo, really does give you more mpg and is easy on your car.
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Replying to: pa356228 (Apr 21, 2009 12:19 am) Like you already know you should check your tire pressure when tires are cold or when you didn't move your car for a couple of hour. If you do lots of highway driving your p.s.i. will increase by itself by a couple of ponds, faster in summer or hot pavement. If you want my advice let them at 30 p.s.i. an over inflated tire is as bad as a under inflated one. Eventually you will see that your tires will get worned-out prematurally. |
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Replying to: pa356228 (Apr 21, 2009 12:19 am) The only filter that needs to be changed is the oil filter. The air filter and cabin air filter get changed at longer intervals.
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Replying to: steve333 (Apr 21, 2009 12:53 pm) Anyways, having you car in line (aliments) will make a big difference on your gas mileage and tires also. |
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32 psi is considered overinflating? Not by me! What are the PSI recommendations listed on the doorframe? I prefer 34 psi for my vehicles, and 34 is within the range specified on the doorframe for max-speed or max-load operation.
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Oil Change places always go for the replace PCV valve line, but you notice your dealer will never recommend it. It isn't necessary. As for the tires, the door jam says 30, my dealer and Discount Tire always puts them on 35 but I prefer to keep them on 32. |
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Replying to: elias (Apr 22, 2009 3:41 am) I also own a 2005 Equinox this one is 35 p.s.i. and for my show car... a 1977 Chevelle Malibu Classic the door frame p.s.i. requirements are at 24 p.s.i. If I take your example of 32 p.s.i. well for my Equinox it would by "under inflated" but for my Chevelle it would be well "overinfalted". Don't go by what's written on the tire (like most people do) that's the max-speed and max-load operation of the tire. Always go by the car's door frame recommendations. By the way...you didn't mention what type of car you drive. |
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