mjeds

absolutely it helps.. cold pressure on the RCF is 36psi, cold meaning the tires have been sitting 6-8 hours and are not heated from driving.. @ 36 psi I average 23mpg in my RCF.. every time I take it to the dealer they air them down to CAFE requirements of 32psi and I drop to 17mpg if I don't catch it and air them back up.. EVERY FLIPPING TIME..

mbykow

If you are only getting 10mpg you should unhook the trailer you are towing.

SCupra300

What do you mean by Coast-down ? How can I tell if wheel alignment has to be done ? If it drives straight and doesn't shake does it mean that it's good ?

Craig B

35 PSI in all tires cold

Acrad

Have you reset the MPG average? Perhaps previous owner towed some with it

NewB2Lexus

Tire pressure, unless it is way off, will not improve your mpg in the magnitude you are looking at. How did you come up with the 10 mpg number?

SCupra300

10mpg was shown on the gage display I reseted it added some air I'll let you know if it helped , what else could cause such a low mpg ? My lx470 was better than that

bbqsoup

Did the “After refuel” display also show 10mpg after each refuel? Maybe reset both and compare after a full tank.

Craig B

You can always check it yourself with a calculator. I get 15-16 in the city and 20-21 highway using Mobil premium 93 octane.

SCupra300

I'll definitely try Mobil gas station , now I use BP thanks a lot

rotaiva

Hi,
I'm new here and 1st post!
Currently in market for 2018 GX460 and wonder what avg MPG people in this forum are getting. If you could share it with city/highway ratio, appreciated!
For people who used to own SUVs with power tailgate, could you share your experience with the side door type tailgate? Very inconvenient?
Your input appreciated!
Thanks.

tecman

Welcome to CL
I average 15.3 with driving mostly side roads and a lot of red lights. I work out of the back of my GX so when it is raining it is annoying.

Acrad

I average 18 MPG but certain freeway runs I can get 21MPG.

Tecman: Just talking utility and not looks :-) but you need an ALU-Cab Shadow awning. A far bigger area to keep dry and easily deployed and retracted.

https://adventure-ready.com/store/al...shadow-awning/

bbqsoup

I average about 16.5-17.5mpg in mixed of freeway(70% with traffic) and city (30%). All freeway around 20-22mpg. I out on my Yakima skirack for 1 tank and got 15mpg

Nickk6

About 2 weeks ago I drove from OC, CA to LV, NV and back and paid attention to my mpgs on both ways. On the way to Vegas, I averaged 15 MPG while driving around 70mph, I'd manual shift gears on hill climbs to avoid going uphill in 5th gear (heats up the transmission more than just shifting to 4th gear). I did have some slight traffic at the beginning for about 30 minutes, once on the open road I only stopped 3x for eating/restroom/stretching. Trip was about 5 hours and 280 miles. On the way home I did not hit any traffic, I left at night so it was all clear and I only stopped 2x this time. Because I was tired (13 hours of driving 700 miles in a 24 hour time span) on the way home, I did go a lot faster, averaging about 75mph. I'm pretty sure that the way to Vegas is more of a downhill drive, or at least the hills are less taxing, because coming back I only averaged 13 MPG. I also noticed I had to manually downshift more so I wouldn't bog down to 60mph in a 70 zone when climbing longer ascents. The trip home took a little less than 4.5 hours.

I had my roof rack on and a full size spare in the trunk. The front end also has the lower valence removed from the front bumper, so most the aerodynamics under the front bumper are gone and air just hits into the flat radiator.