Southern California to Scottsdale, Arizona. Two adults, luggage, 75-80 mph, uphill for a while, a/c on, 105F outside... Fun and easy drive.

 

I know the Gx does not have the best fuel economy and it is actually one of its biggest disadvantage but I am getting little below 300 miles on a tank for pure city driving. Is this normal?

That's close to 12 mpg not 15 mpg as EPA numbers on sticker. I don't have heavy foot nor I drive like a grandma so how can I get better mpg on the Gx?

EDIT: After doing more highway miles, I get over 20mpg easily.

 

Sounds in the ballpark for pure city driving. Idling and stop n go, slow trips kill mpg.

 

Try out Pedal Commander and use in aggressive ECO mode. I don’t use mine much in city but it makes 20-20.5MPG a lot easier for me on HWY. They have a 30 day MBG if it doesn’t work for you.

https://www.clublexus.com/forums/gx-...l#post10221044


https://pedalcommander.com

 

Is it new and not fully broken in ? ... mine got 12-13 no matter what until 1,200+ miles ... thought I made a horrible purchase decision ... then improved to within advertised MPG range from that point forward.

 

No. I bought it used with 75k on the clock so I should get within estimated MPG but I am not

 

Was it maintained with records ? What tires are you running ... and at what pressure ?

 

That sounds about right if all you do is stop n go city driving.

 

Are you actually putting in a full 23gal every fillup?

"A little below 300" and putting in about 20 gallons = 14mpg+

 

I also am curious about your tires, tire pressure and type of driving. Too many factors go into a MPG figure.

 

I am calculating mileage based on miles I have driven between fill-ups. I am not reading off computer display. I am barely getting 12.5mpg

 

Tire pressure are as it should be and as I mentioned earlier, I drive as a normal person. Not like a **** nor like a grandma.

This is my daily commuter car. If I knew this is how I will be getting in mpg, I would have considered the RX instead. Although I love GX way more in every other category.

 

My 19 GX has 500 miles on it. I average 16-17 mpg around town - a bunch of lights with 45-50 mph limit. I don't stay on the gas pedal all the time, I accelerate and let it coast for a bit. I know some people drive slow but their foot on the gas pedal constantly, and that kills the gas mileage.

I drove a 2020 RX loaner for a few days and it wasn't getting much better gas mileage. I was averaging around 18-19 for the same type of driving. My 2014 Acura MDX FWD gets 22-23 mpg consistently though.

 

Does the Air Filter look like it's been changed in the somewhat recent past ?

I know most Lexus-ites love a cushy ride, but the recommended 32 psi tire pressure is too low IMHO ... try bumping to 36 psi and enjoy improved steering response and gas mileage.

 

Hmm..I didn't think of that. I will definitely try that method