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cruising fuel range

Captaine01

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Joined
May 9, 2025
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5
RX crew, what kind of cruising range are you getting out of your Lexus, especially on long highway drives. I've been paying more attention lately and trying to figure out where the luxury sweet spot is between comfort and fuel efficiency. Whether you're in an RX 350, 450h, or 500h, how far are you going on a full tank before the low fuel light kicks in? Also tempted to ask if anyone's noticed big differences based on drive mode, terrain, or speed.
 
In my RX 500h, I get around 460 to 480 miles on the highway with a full tank. Using ECO mode and keeping a steady speed at about 70 really makes a difference. Switching to SPORT mode or tackling hills makes the mileage drop quickly. The low fuel light kicks in with about 3 to 4 gallons still in the tank. Overall,it's a pretty solid balance if you drive it the right way
 
On highway trips, most RX owners get around 400–500miles per tank, with hybrids like the 450h getting closer to 500 if you drive easy. Eco mode and flat roads help a lot for sure...but speed, hills, and Sport mode will eat into that range too fast.
 
RX crew, what kind of cruising range are you getting out of your Lexus, especially on long highway drives. I've been paying more attention lately and trying to figure out where the luxury sweet spot is between comfort and fuel efficiency. Whether you're in an RX 350, 450h, or 500h, how far are you going on a full tank before the low fuel light kicks in? Also tempted to ask if anyone's noticed big differences based on drive mode, terrain, or speed.
On my RX 350, I usually hit around 420–450 miles before the low fuel light pops on, mostly highway with a light foot. Sport mode definitely eats more, and any hill-heavy terrain knocks it down a bit. Normal mode seems to give the best mix without feeling sluggish.
 
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