Low miles per gallon

2003 LEXUS RX 300
145 MILES • 3.0L • V6 • 2WD • AUTOMATIC
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INNOMS
  • MEMBER
  • 1 POST
Very low mpg, only getting thirteen mpg.
May 30, 2018 at 6:49 AM
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STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
Hello,
That is low, First check the air pressure in the tires next I would replace the MAF sensor which becomes contaminated causing false reading effecting the performance and the mileage. Here is a guide that should help.

https://www.2carpros.com/articles/how-to-replace-a-mass-air-flow-sensor-maf

Here is how it is done for your car (below). Please run this test and get back to us.

Cheers, Ken
May 31, 2018 at 11:16 AM
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