How about folks with the new 16+ FKS engine, any difference?

The FSE has a drinking problem.

 

2013 RWD Fsport - 19.8mpg - Houston, Tx - almost 80 miles a day on average mainly hwy(traffic) but alot of city driving too. always on ECO.

 

fks? Fse? Huh?

 

The new 3.5 L V6 that's in the 17 GS. It's a little different from the FSE, it makes slightly more horsepower (like 311 vs 306) but the impression I get is it's mostly the
same motor. It -might- have improved fuel economy.

-Mike

 

Mine is a 2017 and mpg is just as bad as when I had my 2015. It might be better if I didn't install the Apexi Throttle Controller and constantly drive in Red mode along with Sport S+, but it makes the commute more fun.

 

The FKS has the ability to go into the Atkinson cycle under low load conditions for improved fuel economy, which is something the FSE cannot do. A bit of nice technology to brag about, but I don't think we're seeing much in the way of a real world difference in mileage between the two versions.

The FKS came to the GS350 for 2016. The 2GR-FKS is also used in the 2018 IS350, IS300, RC350, and RC300. It's also in the 2016+ RX350 and RX450h. It's also now used in the Toyota Sienna, Tacoma, Highlander, and the new Camry.

 

I have a 2017 F-Sport and I usually get around 21mpg in mostly city driving in normal mode.

 

Yeah, low loads didn't use very much fuel in the first place so saving more fuel there is a small gain. Acceleration drains the most fuel by far and isn't affected by the change (and since there's more power it might even use more fuel).

 

I get about 17 mpg and i drive highway only 20% of the time

 

Did u get a new car again?

 

I used to get 22.2 MPG when I used recommended tire pressures.
Now, using lower than recommended tire pressures for comfort, mileage has dropped to 21.4 MPG.
I probably do roughly 50/50 city/highway, and I use Normal mode; Eco is too slow to kick down, while Sports has too aggressive downshifting on lift-off - for my tastes.

4GS is a bit of a thirsty car. Maybe it has a lot to do with the 3.5 liter capacity and also the extra weight, as Lexus' modern 3.0 V6's in their older models are more frugal at 25.6 MPG.

 

I've been getting about 21-23 avg with my commuting (2GR-FSE, 2015 f sport AWD) but this is the worst time of the year for commuting. On genuine mostly highway cruises, 25+ is easily obtained. My worst daily avg has been down to 19 but that involved being stuck in a lot of traffic.

No, this car is not as frugal as my V6 Camry that got no worse than 25 avg 99% of the time, and drank cheap gas. Not hardly.... but its about 100 times more fun; any concerns I have about MPGs go right out the window when I can just launch the thing and GO. I don't do it that often but I've caught myself laughing uncontrollably a few times..... its worth the price of admission, so to speak.

-Mike

 

All you California owners - California is moving closer to charging drivers for every mile they drive. Soon you can add an extra cost to owning a car ... that is - if you elect to drive it.

 

Glad I didn't buy my GS from that state and give them the revenue. I was more than happy to give your great state of Texas the revenue instead. Don't even get me going on Jerry Brown! Nothing against the people of California but your politics are garbage.

 

And our tax is garbage too. 9.5% now. BCLEXUS DO SOMETHING DAMMIT!!!!!