whats your mpg on RX450h?
Pit Crew
Joined: Sep 2004
Posts: 154
Likes: 12
From: Florida
I presume you're talking about a GS 450h rather than the RX 450h.
I've had my 2011 450 FWD for about 3 weeks now and have been very pleased with the mpg. No interstate and would have to say on my 17 miles one way to work 6 of it is city with another 5 in a 2 lane country road the rest is 4 lane. I'm hitting 33-34 on each fill up. Still warm but cooling off. We have no winter gas here in Alabama so expect to see very little drop this winter. I do the speed limit but don't have a lead foot. This is my 4th hybrid so I'm familiar with what works. I'm impressed with this vehicle and it's technology.
Bob
Bob
Driver
Joined: Nov 2009
Posts: 113
Likes: 0
From: OH
I've gotten my best mileage on the interstate with heavy traffic, cars less that 200 ft apart, and I've noticed a jump in mileage in areas with long runs of sound barriers and median walls.
Most of the energy above 30 MPH goes to wind resistance, so I guess the barriers block the ambient wind and the moving vehicles keep act like the peloton in cycling. As soon as the traffic spreads out the mileage drops.
Most of the energy above 30 MPH goes to wind resistance, so I guess the barriers block the ambient wind and the moving vehicles keep act like the peloton in cycling. As soon as the traffic spreads out the mileage drops.
Rookie
Joined: Jul 2010
Posts: 97
Likes: 1
From: Alabama
Sleepy
No, I'm talking about the RX450h. If you control the quick take off and ease into it and learn how to coast to reap the huge benefits to charge the battery it really helps your mpgs. The city area I have to drive has a speed limit of 25 so I'm almost all battery in that area. I have not gotten worse than 32mpg and check with a calculator. I'm very impressed with how accurate the computer is on what the car is showing verses’ what I get on the calculator. It has only been off by less than 1mpg.
Bob
No, I'm talking about the RX450h. If you control the quick take off and ease into it and learn how to coast to reap the huge benefits to charge the battery it really helps your mpgs. The city area I have to drive has a speed limit of 25 so I'm almost all battery in that area. I have not gotten worse than 32mpg and check with a calculator. I'm very impressed with how accurate the computer is on what the car is showing verses’ what I get on the calculator. It has only been off by less than 1mpg.
Bob
Pit Crew
Joined: Sep 2004
Posts: 154
Likes: 12
From: Florida
Hmmm, interesting. I've had mine in ECO mode for the last few months, and avoiding jackrabbit starts, but still getting only 28 MPG. Of note, once I approach 10 MPH, the engine always kicks in. I wonder if there is some setting I've overlooked.
Pole Position
Joined: May 2009
Posts: 2,838
Likes: 26
From: GA
Pit Crew
Joined: Sep 2004
Posts: 154
Likes: 12
From: Florida
Tried it... no go. My engine kicks in at ~10 MPH even when the power gauge only 1/4 in the "green zone." Heck, it even kicks in just backing out of my driveway! In fact, I'm now averaging only 26 MPG. I just had my 5000 mi service and asked them to check it out, and they said everything is fine. Not sure I believe them, but no other dealer in town for a 2nd opinion.
Last edited by sleepysurf; Nov 13, 2010 at 07:27 AM.
Driver School Candidate
Joined: Oct 2010
Posts: 8
Likes: 0
From: ca
I've had my 2011 450 FWD for about 3 weeks now and have been very pleased with the mpg. No interstate and would have to say on my 17 miles one way to work 6 of it is city with another 5 in a 2 lane country road the rest is 4 lane. I'm hitting 33-34 on each fill up. Still warm but cooling off. We have no winter gas here in Alabama so expect to see very little drop this winter. I do the speed limit but don't have a lead foot. This is my 4th hybrid so I'm familiar with what works. I'm impressed with this vehicle and it's technology.
Bob
Bob
Driver
Joined: Nov 2009
Posts: 113
Likes: 0
From: OH
Here's a question:
How well does the MPG computer compare to actual mileage fuel use calculations? I will start keeping track next week and report after 1000 miles to smooth out filling differences.
It seems when I fill the tank it always takes less than I would have guessed based on the projected cruising range showing at the time. Maybe the computer is under reporting MPG?
How well does the MPG computer compare to actual mileage fuel use calculations? I will start keeping track next week and report after 1000 miles to smooth out filling differences.
It seems when I fill the tank it always takes less than I would have guessed based on the projected cruising range showing at the time. Maybe the computer is under reporting MPG?
Rookie
Joined: Jul 2010
Posts: 97
Likes: 1
From: Alabama
I have check mine with the calculator every time and it always comes up to less than 1 mpg from the computer. I fill up till I see fuel at the neck so I'm sure it's full. I know you should not do that but prices were going up and wanted all the cheaper fuel I could get plus I had a ways to go till I got home so knew it would drop before I stopped.
Sleepy
What psi are you running in your tires? Also I've had mine up to 40 mph many times with just battery (as long as there was enough charge in the battery). Of course you have to watch pedal pressure and do it slowly. Could not do that uphill either.
There has got to be something wrong with the way yours is doing that after just 10 mph. With you being in FL you should not have winter gas affecting anything either. You might try contacting Lexus tech line or something and see if they could shed some light on your issue.
Bob
Sleepy
What psi are you running in your tires? Also I've had mine up to 40 mph many times with just battery (as long as there was enough charge in the battery). Of course you have to watch pedal pressure and do it slowly. Could not do that uphill either.
There has got to be something wrong with the way yours is doing that after just 10 mph. With you being in FL you should not have winter gas affecting anything either. You might try contacting Lexus tech line or something and see if they could shed some light on your issue.
Bob
Rookie
Joined: Jul 2010
Posts: 97
Likes: 1
From: Alabama
Thought I would take some photos for proof.
The average since fillup only has almost 60 miles on it but I have been careful and was working to be good to see how good I could get.
The second is the to average I guess since I've had the car and I'm at around 1500 miles or so. Weather has gotten colder lately so I aired my tires to 36 psi.
The average since fillup only has almost 60 miles on it but I have been careful and was working to be good to see how good I could get.
The second is the to average I guess since I've had the car and I'm at around 1500 miles or so. Weather has gotten colder lately so I aired my tires to 36 psi.
Pit Crew
Joined: Sep 2004
Posts: 154
Likes: 12
From: Florida
Looks like something is wrong with my Eco mode! I turned it off, and my MPG's have since jumped up to 29.5. Also, now I can (slowly) accelerate beyond 10 MPH in pure battery mode. Guess I'll have to take it back to the dealer to investigate.
Lead Lap
Joined: Jun 2006
Posts: 4,534
Likes: 0
From: MD
I drove a loaner 450h and I loved it save the stupid remote mouse thing and the increased size of the RX. I couldn't figure out how to get out of Eco mode. I did notice that it stays in electric motor longer and can go faster. This is great. Ours was averaging 25.1 MPG, which isn't too different from our 400h. However, this loaner was very new (our 400h def. improved after the break in period) and is driven by all sorts of drivers. I myself jammed on it a few times. Intersting car. I would buy one.