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How to fix poor gas mileage on a 2004 es330?

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Old 03-15-12, 05:02 PM   #1
Ovega07
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Default How to fix poor gas mileage on a 2004 es330?

How many miles do u guys get on a full tank of gas
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Old 03-15-12, 07:45 PM   #2
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2003 ES300.
350-375 mi/tank
avg 21-24 mpg, mix highway/city driving.
I'm a spirited driver too.
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Old 03-15-12, 08:39 PM   #3
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2004 ES
about the same, just took my winter tires off and I get about 2-3 more mpg with summer tires and rims, also weather is warming up. I can get 28-29 on the highway if i use the cruise.
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Old 03-15-12, 10:42 PM   #4
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try changing your air filter and clean your MAF sensor helps alot.
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Old 03-17-12, 07:36 AM   #5
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Quote:
Originally Posted by Timothyj View Post
2004 ES
about the same, just took my winter tires off and I get about 2-3 more mpg with summer tires and rims, also weather is warming up. I can get 28-29 on the highway if i use the cruise.
same here...averaged about 29mpg on a roadtrip to SC.
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Old 03-17-12, 08:38 AM   #6
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I have horrible gas mileage on my 2002 Lexus ES 300 as well. I get around 265-290 miles on a full tank (and I overfill it too).

According to the computer I get around 17 mpg on the city and 19-20mpg on the highway. If anyone can help I would really appreciate it! I know the air filter is dirty so I'll be going to autozone to change that.
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Old 03-17-12, 01:41 PM   #7
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clean/replace mass airflow sensor, change air filter, proper inflated tires, possible 02 sensor going bad or air fuel ratio sensor going bad.
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Old 03-17-12, 01:42 PM   #8
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get 17-19 city. 27-30 highway with a/c on and going 55-65 on the highway
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Old 03-17-12, 03:05 PM   #9
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Spark plugs may also help.

24 mixed driving, 28 on highway trip.
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Old 03-17-12, 08:17 PM   #10
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Quote:
Originally Posted by brucelee1 View Post
Spark plugs may also help.

24 mixed driving, 28 on highway trip.
Replaced spark plugs with platinum ones last January 2011.

Also does the car computer say that your getting 24 mixed and 28 on the highway? What year ES do you have?

Last edited by KS13; 03-17-12 at 08:21 PM.
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Old 03-17-12, 08:20 PM   #11
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Quote:
Originally Posted by Patsum View Post
clean/replace mass airflow sensor, change air filter, proper inflated tires, possible 02 sensor going bad or air fuel ratio sensor going bad.
Thanks for the advice. Does autozone replace the MAF if I buy one from them? Also who cn I take it to to get it cleaned? Because I don't know anything about this stuff.

Thanks.
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Old 03-18-12, 06:50 AM   #12
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I have an ES330, 2006. I used to have an 02 ES and mileage was a tad better on that car.
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Old 03-18-12, 06:51 AM   #13
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Yes, those quotes are from the car's computer.
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Old 03-18-12, 10:43 AM   #14
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Thanks for the input guys as I really need it my 04 es330 on a full tank of gas 89 from shells mixed driving until the empty warning light came on I only get 230 miles
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Old 03-18-12, 01:36 PM   #15
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230 miles signals either something is wrong, dirty or malfunctioning... sensors integral to the engines performance and MPG or a severe lead foot or bad gas.

Just as a side note...
My 2002 es 300 does not like taking 89 winter blend here in Cincinnati. It goes all to **** so in winter I go up to 91-93 till the winter blend is gone.

also, the 2002-2003 es300 is only a 3.0 liter V6 while the 2004-2006 ES330 is a 3.3 V6 so yes MPG may be better on the 02-03 ES
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