GX550 Real World MPG

[Bluegill]

I’m curious for those who have bigger tire diameters than stock how do you monitor your speed? I have been using Waze/iPhone speedometer app but I’m not sure how accurate those are.

I have a mph app that I occasionally turn on and let it display speed while I'm driving on the highway. 70 on the dash display is really 75, 80 is about 86. I have to set my cruise around 75 to mostly keep up with traffic, which is really 80/81 mph.

 

[YellowLab]

They measured it going downhill with 100 psi in the tires, a 50 mph tailwind, in a vacuum, with self-contained-breathing-apparatus-equipped elves pushing the vehicle while it was in neutral.

Do you know how many angels were dancing on the head of a pin when that was happening?

 

[Danh63]

I have a mph app that I occasionally turn on and let it display speed while I'm driving on the highway. 70 on the dash display is really 75, 80 is about 86. I have to set my cruise around 75 to mostly keep up with traffic, which is really 80/81 mph.

What size tires are you running?

 

[Bluegill]

35x12.5x17

 

[YellowLab]

So I've had my GX550 Overtrail + for a little over 1 month - have driven 656 miles. My trips mind you have scored excellent from a breaking/acceleration standpoint on the Lexus App. What is totally f'ed up - is that it took me 3 TANKS of gas to drive 656 miles - which in CA equates to roughly $320 or $0.50 per mile in fuel alone. Now, I'm truly not worried about the money - but at this point am starting to question of Lexus has completely lied to future buyers or thinking I have a river of a gas leak coming out of this thing.

And before anyone brings it up - CA makes more per gallon in taxes than oil companies do in profit per gallon...