help with gas mileage

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Jan 27, 2020 | 02:17 AM

AdemolaAd

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From: California

help with gas mileage

hello i am getting 10mpg on my lexus is 350 2007..what could be wrong..i am supposed to be getting 20+mpgs right?

Jan 27, 2020 | 04:30 AM

Petet

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Joined: Mar 2018

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From: Mass

What type of driving ?
I average 24 mostly highway.

Jan 27, 2020 | 09:30 AM

Gville350

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From: South Carolina

Immediately I'm beginning to think there's a leak somewhere. The worst MPG I've seen on CL here is 17-18 mentioned by other members.

Jan 27, 2020 | 09:35 AM

AdemolaAd

Thread Starter

Driver School Candidate

Joined: Nov 2019

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From: California

Quote:

Originally Posted by Petet

What type of driving ?
I average 24 mostly highway.

normal everyday driving..little highway..even on highways or busy roads..i have never gotten close to 20mpg

Jan 27, 2020 | 11:03 AM

2013FSport

Lexus Test Driver

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From: OR

How are you calculating this? Please use the old school method of miles traveled and gallons used to refill.
Mine is 21.5 mpg for 40% highway speeds / 60% traffic jam!

Jan 28, 2020 | 09:15 AM

Gville350

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From: South Carolina

Any aroma of raw fuel leaking in the engine bay or around your gas filler neck area?

Jan 30, 2020 | 11:59 AM

Drizell

Driver

Joined: Apr 2017

Posts: 162

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From: FL

I would due basic maintenance such as oil change, tune up, fuel injector treatment by Gumout brand or Royal". Spark plugs should be checked as well. I understand you may not want to invest into the vehicle but if you do, you get what you pay for and should see increase overall on the vehicle.
My 2010 IS250 gets 24.3 mpg now. When i bought it 2 years ago it had 17mpg. Air filter was dirty, spark plugs were needed and just fuel treatments that encourage additional MPG.
I noticed the MPG climbed up.

2010 IS250
119K
not feeling carbon build up
Still kicking butt in FL