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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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#165 of 290
Re: Something's up with my 2005 LS [malexbu] by javon7065
Jun 19, 2008 (5:57 am)
Reply

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.
#166 of 290
Re: Something's up with my 2005 LS [javon7065] by malexbu
Jun 19, 2008 (10:37 am)
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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)
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2008 LTZ with 4 cyl and 6 speed on a 1000 mile roadtrip...34.2 mpg
#168 of 290
Re: 2008 [tsgrayson] by malexbu
Jun 20, 2008 (2:51 pm)
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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)
Reply

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.
#170 of 290
Re: Something's up with my 2005 LS [csandste] by javon7065
Jun 21, 2008 (2:08 pm)
Reply

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
#171 of 290
Re: Something's up with my 2005 LS [javon7065] by malexbu
Jun 21, 2008 (6:27 pm)
Reply

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)
Reply

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.
#173 of 290
Re: Something's up with my 2005 LS [javon7065] by packer3
Jun 25, 2008 (9:30 am)
Reply

Replying to: javon7065 (Jun 17, 2008 5:42 pm)

Is it a four or a six. I had the six and it would get up to 37mpg on a straight highway ride, however in the city 15/16 mpg is what I would gt and I turned in the car with 23,000 on it. The six actually got better gas mileage that the four. Doing all that stuff to your car will not improve the gas mileage.
#174 of 290
Re: Still pleased with the MPG [hcc] by frankcd
Jul 20, 2008 (8:06 am)
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Replying to: hcc (Jun 07, 2008 10:52 am)

I have a 2008 malibu and I am getting the same 17/18 avg mpg. I called the dealership and they told me to make sure I have enough air pressure in the tires. Plus, I was told it will improve with about 10k miles. I am ready to unload the beast.

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