yardie876

Honestly I think its just how you drive personally. The 4GS is right in the middle of the pack concerning mpg. Look at the comparo on feuleconomy.gov

Vasili

Since my purchase in May, my GS Luxury AWD model has averaged 20.2.

Mostly suburban driving, with limited highway time. 8,000+ miles. Mostly drive in ECO. Unless I'm on the highway, or when I know I'll need a sudden burst of speed.

dseag2

As one of the prolific writers in one of the car mags said, "Driving in ECO mode is like driving with the car chained to a wall."

ntocamping

Also should be noted who has the awd vs. rwd as the rwd should return hopefully 2 more mpg across the board. I am only interested in the rwd.

Outrage

It's a bit worse when you compare the AWD variants:

http://www.fueleconomy.gov/feg/Find....32967&id=32405

sarmyth

I don't know if it's that bad! I personally find that lexus's light-load throttle mapping is a bit excessive and that eco gives you finer control if all you're doing is rolling through stoplights & traffic. Eco and sp+ are the only modes I use.

If you have open road however, eco is quite annoying.

So to note I've got a RWD non-DRS Fsport getting 19 with nearly exclusive suburban driving.

But one thing I've noticed, when on the highway, I do see my fuel economy consistently jump up into the low 30's when doing 75, **only** when I have cruise control engaged (again in eco mode). When I maintain 75 myself, the little eco meter registers about 50% more effort from the engine vs when cruise control maintains the same speed.

I'm guessing the engine is putting itself in an ultra unresponsive mode which they don't give to the driver normally in order to do that... or else our built in ECO meter and fuel economy numbers are BS

To me it's always seemed odd.