Last post on Sep 07, 2011 at 7:10 AM
You are in the Lexus RX 300/330/350
What is this discussion about?
Lexus RX 330, Fuel Efficiency (MPG), SUV
#33 of 52 2010 RX 350 MPG
Aug 02, 2009 (6:40 am)
I owned a 2007 RX350 for 3 years and never went below 16 mpg around town. My 2010 is only getting 14.5 around town, same driving style, and I'm on my 3rd tank. Any ideas? I know this model is heavier, but it's rated HIGHER on the city mileage than my old 2007. Anyone else experiencing this during "break-in" and does it get better?
#35 of 52 2010 Lexus RX 350 Gas Mileage
Oct 03, 2009 (7:31 pm)
This is my 4th Lexus. I've had a hybrid and an RX 300. My new FWD 350 is 3 months old and I can't get more than 11 or 12 mpg with city driving. I take off slow, keep my speed down, etc. It's the worst mileage I've had with a Lexus. My '06 rx300 used to get 17 or 18 city. I'm trying premium gas and it's still low. Anyone else having this experience?
#36 of 52 Re: RX350 regular gas or >91? [lvn098]
Oct 12, 2009 (1:42 pm)
Real World mileage 96 RX330 70,000 miles. I use nothing but regular grade 10% ethanol here in Florida. I drive 80% of my trips at less than 50mph. This truck? gets 19-22.5 in town. When I drive to Orlando a trip of 60 miles, at 70-75 mpg I get 25-28 mpg. If I drive 80+, the mileage drops to 22.5-24 mpg. I check the computer readout against the measured mileage and gallons to refuel. The computer is less than .5 mpg off in either direction. I did try premium on a trip this past summer, and saw little difference. It has been my experience (300,000 miles of driving newer model cars) the if you want full power for passing and off the line then you need the premium for max engine power. The knock sensor will drop effective hp by 5-20 hp.
So around town all I need is 200 hp to get the vehicle moving from a light. IN flat land (Florida has few hills) Regular gets me across the state easily.
Sorry for the long winded answer, but hope the extra info helps.
#37 of 52 Re: 2010 Lexus RX 350 Gas Mileage [ds456]
May 04, 2010 (7:44 am)
I don't know what your speed limits are, but I do my best to rapidly get into 5th gear at 40 MPH. Then Watching the mpg readout, I can see 3-5-7-13-to 28 mpg. I don't floor it to get there, just 2500-3000 RPM shifts. Top gear is most economical, so get there quickly, dont spend a lot of time in lower gears.
Tire pressures at 30psi? Check every 2 weeks. I run mine at 33psi.
If you are still getting lousy gas mileage, take it to dealer and get diagnostic check. Maybe the catalytic converter is clogged. I haven't seen 11 mpg since I sold my 71 500 HP Ford Country Squire wagon. I could pass anything on the road except a fuel tanker truck. My RX 330 gets 19 - 20 mpg local driving. 24+ on highway as long as I keep it under 80 MPH.
#38 of 52 Re: Mileage [davesuv]
Sep 08, 2010 (2:44 pm)
I've had mine for over a year and I get 19 city and 28.5 hwy on average with 91 oct.
#39 of 52 Re: Mileage [billdav]
Sep 08, 2010 (7:36 pm)
I have been disappointed with the gas mileage in my 2010 RX. For instance, in the
'07 RX, just going back and forth to work, 6 miles each way with some errands thrown in, I would fill up the tank every 7 to 9 days with a quarter of a tank left or a little bit less. With the 2010 doing the same type of every day driving, I'm only getting 6 or 7 days out of my tank.
I do make three or four trips a year to visit my family, a brother in Marathon, FL(Fl Keys) and my mom in Homestead, Fl. With the '07 RX, I could go all the way from Tampa to Marathon on one tank of gas with about 35 to 40 miles to empty. With the 2010, I could only make it to Mom's house in Homestead(about an hour-and-a-half time between Homestead and Marathon) with 50 miles to empty. So I definitely cannot make it to Marathon on one tank in the 2010.
When I fill up the tank every week, the 2010 shows my cruising range to be between 302 miles to 317 miles. In the '07, my cruising range after a fill-up would be anywhere from 316 to 345 miles to empty.
#40 of 52 Re: Mileage [maximafan]
Sep 10, 2010 (7:08 am)
Have you ever actually calculated the mileage by dividing the number of miles you drove by the number of gallons you purchased? Your post just seemed to be talking about range--how far you drove on a tank. I'm not sure, but it might be the case that the 2010 tank is smaller than the tank on the 2007. If that is the case, then your range would be less due to a smaller tank capacity. It is also possible that your new vehicle's engine isn't quite broken in yet. How many miles are on the 2020? It might start to deliver better mileage with a few more miles on the odometer.
Sep 10, 2010 (7:29 pm)
I got 24.5 - 25 mpg on a trip recently (filled twice, 850-900 miles, 3 adults + one 5 years' child + luggages, almost 90% nonstop highway).
Actually, around 21 - 21.5 mpg, 70% highway but it's more 30% since there's lot of traffic and I'm jammed most of the time.
Still, pretty good numbers here, so I'm very pleased Better than my Highlander LTD 2002 (V6)
+/- 41500 miles, RX350 2008 Premium + 18"
#42 of 52 Average mpg on 2011 RX350?
Mar 06, 2011 (9:53 pm)
How do I find out the exact mpg on my RX? Is there a way to look it up? I just got this car a week ago w/ 8 miles on it. In a week I've got ~200 miles on it. I bought it from the dealer w/ a full tank of regular unleaded & now I'm at 1/4 left in the tank. If I'm not mistaken there's 19 gallons in it & Imust be getting terrible mileage at this rate...? I drive to/from work, 80% highway & 20% city, so I "should" be getting better mpg(?). I dont drive crazy... I accerlerate & stop gradually, but I do go 70-80mph on the highway which (lets just say isnt the speed limit). Does that make THAT big of a difference? I thought I should be getting at least 300-400 on a full tank of gas. Please let me know what I'm doing wrong or what to do.