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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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Replying to: malexbu (Apr 13, 2009 5:38 pm) |
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Got 34 mpg, '09 Cobalt automatic, SF to LA. Usually commute mileage is around 29-30. |
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Replying to: malexbu (Apr 13, 2009 5:38 pm)
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Replying to: poncho167 (Apr 17, 2009 7:26 am) refinery, which is quite likely I mean no disrespect but I've seen not a single piece of data to support the claim that it is well known that the quality of a brands gas can be as much as 2-3 mpg. Different brand differ primarily, as far as I understand, in the composition of the fuel detergent added. This may have effect on the engine's health, long term, but it's not easy to change the amount of energy a gallon of gasoline produces. I do prefer to use a brand gas (will use no-name only rarely), but this is purely for the detergent. Would love to see the data showing the MPG advantage of a brand name. "Well known 2-3 mpg"... People refer to each other's words and an urban legend gets born. I could believe 1/2 mpg difference, but 3?.. Let somebody show the data, not perceptions. I watch my MPG like a hawk -- and here is my data: on a trip from TN to MA, I filled up at three gas stations: Shell, Sheetz, Citgo. The MPG (calculated as "the distance to the volume") for the three legs fueled by each was as follows: Shell - 36.8, Sheetz - 38.9, Citgo - 36.3. (This is for a 2005 Malibu with Ecotec 2.2L.) It's either Sheetz is brandier than the rest or... well, something else. |
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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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