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Chevrolet Malibu MPG-Real World Numbers

290 messages,  Last post on Nov 30, 2009 at 6:59 PM

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What is this discussion about? Chevrolet Malibu, Chevrolet Malibu Maxx, Fuel Efficiency (MPG), Hatchback, Sedan

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#163 of 290 Re: 2008 LTZ MPG [au79en] by malexbu Jun 18, 2008 (6:26 pm)
Replying to: au79en (Jun 17, 2008 5:37 pm) Did you record the average speeds from the DIC? Are your numbers from the DIC or calculated from your fillups?
#164 of 290 Re: Something's up with my 2005 LS [javon7065] by pao Jun 19, 2008 (3:08 am)
Replying to: javon7065 (Jun 17, 2008 5:42 pm) based opn yuor statement that you just use the car for errands, here and there..what distance do you drive...16 months ownership with only 9K driven tells me you dont average very long trips...short trips, city traffic, stop and go will generate the worst MPG. I would simply suggest a good fuel injector cleaner, a new air filter, oil change and hand calculate your mileage....the DIC can be up to 2 MPG off in its calculation.....but I would suggest you probably will not see better than 22-23 MPG based on you short trips.......   no need for a tune up.....the first isnt due to 100K as I recall, but consult the owners manual...
#165 of 290 Re: Something's up with my 2005 LS [malexbu] by javon7065 Jun 19, 2008 (5:57 am)
Replying to: malexbu (Jun 18, 2008 6:22 pm) Thanks for the recommendations. I'll admit that I have not yet done the manual MPG calculation. I just read in the manual that you can reset the DIC MPG info, so I just did that. This really was not an issue until gas hit $4 a gallon. since I get gas kind of infrequently, it seemed like gas was about .15 higher from the last fill up each time. so like most peopal now, I am looking into how to get better MPGs. I know that the stop and go driving I do is the worst but I just thought something was up since it was reporting MPG in the teens. Oil changes are regular, always at the three month mark versus the 3k mark due to the limited use. I'll replace the air cleaner again. wasn't concerned about MPG when I changed it last year.   what type of injector cleaner is recommended? I have never used any of that kind of stuff. Replies to this message: malexbu (Jun 19, 2008 10:37 am) csandste (Jun 21, 2008 11:19 am) javon7065 (Jun 21, 2008 2:08 pm) malexbu (Jun 21, 2008 6:27 pm) csandste (Jun 21, 2008 7:52 pm)
#166 of 290 Re: Something's up with my 2005 LS [javon7065] by malexbu Jun 19, 2008 (10:37 am)
Replying to: javon7065 (Jun 19, 2008 5:57 am) I'll replace the air cleaner again. wasn't concerned about MPG when I changed it last year.   Really no point in it now -- a filter should be changed every 24,000 miles. But you may want to check that the one you have installed is clean and sitting well. (Easy to to it yourself -- read the manual.)   what type of injector cleaner is recommended? I have never used any of that kind of stuff.   Hard to recommend with true knowledge: one can't look inside the engine and see the results after using one. I used various brands available at Autozone and the one thing I know, I didn't have negative consequences: Chevron, Valvoline, Gumout. You won't go wrong with Chevron.   Also, try to use a good brand of gas: Shell, Mobil, Chevron -- at least most of the time.
#167 of 290 2008 by tsgrayson Jun 20, 2008 (1:44 pm)
2008 LTZ with 4 cyl and 6 speed on a 1000 mile roadtrip...34.2 mpg Replies to this message: malexbu (Jun 20, 2008 2:51 pm)
#168 of 290 Re: 2008 [tsgrayson] by malexbu Jun 20, 2008 (2:51 pm)
Replying to: tsgrayson (Jun 20, 2008 1:44 pm) 2005 Base Sedan on a 2300 miles (1150 miles each way) round-trip this May:     36.6 mpg one way (empty)   36.8 mpg back (fully loaded)   (by the fuel purchased).
#169 of 290 Re: Something's up with my 2005 LS [javon7065] by csandste Jun 21, 2008 (11:19 am)
Replying to: javon7065 (Jun 19, 2008 5:57 am) Even with this kind of driving you shouldn't be dumping oil at under 3K. Follow your OLM, if that shows under 10% at that kind of driving you really do have a problem, no one's driving patterns can show that kind of oil abuse. Replies to this message: javon7065 (Jun 21, 2008 2:08 pm) malexbu (Jun 21, 2008 6:27 pm) csandste (Jun 21, 2008 7:52 pm)
#170 of 290 Re: Something's up with my 2005 LS [csandste] by javon7065 Jun 21, 2008 (2:08 pm)
Replying to: csandste (Jun 21, 2008 11:19 am) I was just changing every three months due to the old "3000 or 3 months, whichever comes first rule" I was not following the OLM. The few times I looked at it when I got the oil changed, it did indicate a whole lot of life left in the oil. do most people follow the OLM system? this is my first car with any such system.   thanks for your reply Replies to this message: malexbu (Jun 21, 2008 6:27 pm) csandste (Jun 21, 2008 7:52 pm)
#171 of 290 Re: Something's up with my 2005 LS [javon7065] by malexbu Jun 21, 2008 (6:27 pm)
Replying to: javon7065 (Jun 21, 2008 2:08 pm) You should really read that manual and follow it -- for oil changes and everything else.   How much one exceeds the oil change interval is a personal choice (some posters at forums here claim there is nothing wrong in going 12-15 K miles between *synthetic* oil changes -- and this is also what Mobil says about its MobilOne syntheitc oils), but changing oil more frequently than the manual says (and it, basically, states, "Trust the oil monitor"), is not only an unnecessary expense for you, it's polluting environment without a reason.
#172 of 290 Re: Something's up with my 2005 LS [javon7065] by csandste Jun 21, 2008 (7:52 pm)
Replying to: javon7065 (Jun 21, 2008 2:08 pm) Your OLM is set for dino and should do about 7-8K between changes. It's very, very sophisticated, and very conservative. If you change at 3K you're throwing money away.

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