Well. Here's one of my best MPG's I got on a 2008 Lexus RX 350. It was of course on the highway, and I did take the photo while driving.. Just cause it was mind blowing, hence the fuzzy image. It went up to 31.0 afterwards and dropped down to 30 up until the next fill-up.


Pretty sweet huh

What is the best MPG you've gotten? Can be on any Lexus RX model.

 

Wow! the most I ever got outta my 05 RX was 24MPG going out to Bedford,PA. With Premium fuel too. I notice when ever I get a new Lexus for a loaner, the mpg`s are always better than mine. : /

I dont know if it`s a power to weight ratio thing, or if the new motors are just getting better fuel economy?

 

I got 27.6 on a trip to South Texas but I was driving it like I stole it, as fast as I could without going to jail. According to the Kenwood trip analysis my top speed was 96 mph on that trip.

I'm going to Key West next month and will encounter much more population density and my speed will be closer to the limit so I'll keep tabs on the mileage for that trip as well.

 

Yeah it seems around 80mph+ is great for MPG with these cars.I got tops 24mpg at that speed going from LA to SD.

 

The best I've achieved on a tank was 27 mpg, I was going 60 mph, extremely slow acceleration. The only reason I was going so slow was because i was following my friend who was driving his old as heck RV, which could barely hold speed at 55. lol I don't think I'll be able to ever get 27 mpg again...haha

My normal highway mpg is about 23-24 while doing about 85-90mph. Not bad considering the amount of drag the RX has.

 

@Carver
I was on a trip to South Texas too! Driving mostly 70-75mph depending on the speed limit and easily got 30mpg. Surprising how you got 27mpg while driving a ton faster though :O

I drove around for a bit going 110mph (due to the speed limiter >.>) and the gas mileage was only 22mpg. I guess the drag really works in after hitting a high speed.

 

The 27.6 was achieved for only a short period of time but 25-26 was pretty constant. i didn't do an overall trip average, too much work!

 

My best mileage in my 04 RX330 AWD based on a full tank, measured not computer, was 28.7. This was Freeway at around 75 MPH. I typically get 26 - 27 MPG on the freeway at a steady cruise controlled 70-75 MPH on long non-stop trips. My average MPG over the life of ownership is 23 MPG in combined driving (80/20) highway/city. I burn premium fuel and mostly fuel with no ethanol.