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RX350 - Long Drive, Performance, MPG, Failure etc

jako1jako1 Posts: 22
Would like see if anyone took their RX350 for a drive longer than 500 miles per trip.

Did anyone experience any performance issues, what was the MPG, did any unexpected repair/maintenance needed to be done? Was it covered by warranty or not?

After your first such long trip, would you do a similar trip again?



  • kkhomekkhome Posts: 9
    Ya. I did that last month from San Jose to San Diego 1000 miles round trip within 3 days. Start by ODO 430mile.
    It's quite comfortable to drive the RX350 on long trip. It
    is no any issue during the long trip,too. If you have unexpected situation, just call the roadside service. They
    will handle for u.
  • maximafanmaximafan Posts: 592
    Took my RX350 from Tampa, Fla to the Northern
    Georgia mountains in October of last year two months after purchasing it. It was a dream to drive and I even got up to 30 mpg's at one point, probably while driving through the hilly roads with no A/C on and lots of coasting. But I believe overall the mpg's for the trip averaged around 26 mpg's. I've also made two trips to the Florida Keys, as my family lives down there.

    I'll probably have to scale back on the long
    trips until my one year mark as I am leasing
    the vehicle, and after seven months it has almost 10,000 miles on it and I'm allowed 15k
    a year for my miles. I've had no problems so
    far, but I would expect this from a Lexus/Toyota product, especially since the car
    is still new. I've always judged a car, in my
    opinion, as far as being a reliable, trouble-free car if it is trouble-free for at least the
    first three or four years. If it stays that way even after four years, that's even better.

    I've had good luck with the cars that I've driven over the past 18 years. I've driven
    a Mazda, two Nissans and now the Lexus. Let's hope the good luck continues! :D
  • renzo07renzo07 Posts: 10
    I was interested in an RX330 or 350 and I was wondering how well it does on Gas? How every so often does it take to fill up on avg. driving? Why can it not take Regular Unleaded. There is no difference. :confuse:
  • maximafanmaximafan Posts: 592
    renzo, I've had my RX350 since August of last year. So far, driving around town has not been
    too great, mpg-wise. According to the readout, I'm getting between 16 and 17 mpg around town. I've seen much better mileage when driving on longer trips, 26 to 28 mpg, even up to 30 mpg at times. But I haven't taken the car on any long drives in the past three or four months, so mostly it's been city driving. Luckily, I only live approximately 6 miles from downtown Tampa where I work most of the time, with a few trips around Tampa attending depositions and such. I try to fill up on the same day of the week, so when I go to fill up on my designated day, I usually have a quarter of a tank left still.

    I've been putting "regular unleaded" gas since almost the beginning when I bought the car, and the car drives perfectly fine. Even the service guy at Lexus said it would be okay to put "regular unleaded." I don't know if that's affecting my gas mileage or not, but around here, there's a 20 cent difference in price between regular gas and premium unleaded
    gas. Maybe when gas prices come back down again, I'll pop a tank of premium every so often in my car.
  • oldfart4oldfart4 Posts: 3
    I just yesterday returned from a 1300 mile round trip from Boynton Beach FL to Marietta GA. 2007 RX 350 FWD with about 2500 miles on it. Set cruise control on 80 mph and aimed the car up the Florida turnpike and Interstate 75. 25.4 mpg, no problems.
  • env_engrenv_engr Posts: 12
    I have had my 2008 RX 350 for little over 2 weeks and I love it. However, I have been getting, on an average 17-18 mpg with a combined driving of City and freeway. It is 80% City and 20% freeway. I live about 2 miles away from work and there are numberous stop lights in between. I guess that may be a bid factor in the low mpg that i have been getting. I have been trying to be as gentle as possible on the gas and I try to coast as much as I can. So, the low mpg is not due to hard driving.

    The first tank of gas(came with the car)lasted for about 280 miles and when I filled in it topped in after the pump stopped at 16 gal. I know that the capcity is 19.2 gal but the rest is reserve I guess. Can anyone clarify what is the reserve gas on a 2008 RX 350? Also, when you refuel the tank to its full capacity, what does the computer read-out say for "crusing range"? Some people on this forum have reported more than 300 miles but I never got to 300 anytime.

    Does anyone know if there is a "break-in" period for the new Rx 350 and mpg improves after running a certail mile marker?
  • maximafanmaximafan Posts: 592
    Your situation sounds similar to mine. I live
    approximately 5 to 6 miles from work. I generally don't get more than 17 or 18 mpg's driving around town. But when I take longer trips, such as I just went up to Northern Georgia almost a month ago driving from Tampa, Fl to
    Blairsville, GA, and I got up to as much as
    28 mpg's. So the highway mileage is definitely
    better than the city mileage.
  • You guys must drive slow or my wife drive's like a nut, I just fill up my tank today for the first time since it was done at the dealership 3 weeks ago when we brought our RX 08, only driven 227 mile since and fill up at 17.610 gallon, that come's out to less than 14 mile a gallon between 50% city and freeway. That don't sound good at all. Anybody think I should call the dealership and ask them if something is wrong? also the low gas light came on already, so I guess there must be at lease 2 gallons in reserve if the tank is at 19.2 .
  • I definitely don't consider myself a slow driver, although I don't always drive like "Mario Andretti" either. Try and give it some time.
  • tidestertidester Posts: 10,110
    I don't always drive like "Mario Andretti" ...

    Neither does he! Mario only drove that way on the track and has always been a sane, respectful and law abiding driver on the road.

    tidester, host
    SUVs and Smart Shopper
  • We are considering purchasing either the 2008 RX350 or the 2008 RX400H .
    Should we use High octane gas or Regular gas ??
    Does it matter ?
    Thank you.
  • maximafanmaximafan Posts: 592
    You missed the joke, Tidester. By referring to
    "Mario Andretti", I was comparing how there are
    a lot of people on the public roads today who
    drive as if they're on a race track!!
  • tidestertidester Posts: 10,110
    Oh, no, I didn't miss it. I was paying my respects to a great man!
  • I just got back from a trip from Little Rock,AR to Wichita Falls, TX via OK,City. Freeway all the way, total of about about a 950 miles round trip. I set cruise at 73 and averaged 26 miles per gallon.I have a 2008 AWD RX350.

    RX is brand new bought back in Feb of this year. I had no mechanical issue nor did I expect any. I make this trip often. Used 91 octane.
  • bmlexusbmlexus Posts: 755
    How smooth is it during highway speeds.

    Any more detail what are the good and bad parts you like about this car.

    What do you guys suggest if buying a RX wait for the new RX sometime next year or get this.

    Lexus seems to be not telling anything about the next RX.

    I have a strong feeling the new RX will be much more advanced than the current
  • The RX is set up for smooth driving and the unibody is much smoother than the truck bodies I have had with past SUV's being a Chevy Blazer and Ford Explorer.

    My favorite things I like is the power back door, rain sensing wipers and the standard sound system is excellent. Also I got 26 mpg with the cruise set at 73 mph. I have AWD and this is much better than the advertised hwy mileage.

    The current RX is still setting the curve as far as popularity and sales compared to other luxury entry SUV' s. I bought my 2008 in February knowing that there were no differences in the 2009 models other than a few color changes. I tend to keep vehicles for 10 years or longer to get my money's worth out of them. Waiting for the 2010 model is up to you. You can probably still get a good deal on the 2009 but expect to pay close to MSRP for the 2010 if they make a complete body change.
  • laurasdadalaurasdada Posts: 2,480
    Last long trip in the wife's '02 RX300 to New Brunswick, CN returned (per computer) ~21mpg. This was probably 90% highway, although the RX was loaded to the gills with four people, one dog and luggage... In everyday driving, she averages ~18mpg overall.

    '13 Jaguar XF, '11 BMW 535xi, '02 Lexus RX300

  • la4meadla4mead Posts: 347
    I've gotten both extremes. With my '99 RX300, I've gotten 28 actual mpg on mostly flat highway with little wind more than once - close to 29 on one trip. But that's with being conscious of fuel consumption as I drove, coasting long before stops, accelerating gently. Allowing upshifts quickly, and avoiding downshifts as I accelerate (by accelerating gently, the logic will avoid shifting down).

    When I'm lead footed and in a hurry accelerating like I'm on my motorcycles going for the diamond lane (to keep from getting run over on the bike), it drops to 14-15 actual mpg.

    Typically I average about 20 suburban, and 25 all highway by keeping my Mich Cross-Terrains at about 42 psi (ride is a little harder) keeping the speed to about 65, coasting to (avoid) stops, and accelerating gently, letting up on it for early upshifts. I never leave the car idling just for A/C, the way I see so many do. I'm usually riding my motorcycle these days (compare to 50-60 mpg and far more involving), so when I get into my overly benign RX, it's easier for me to drive with consumption of our natural resources in mind, and therefore less wastefully.

    These days I wouldn't miss the extra power and smoothness; a torquey but fuel conscious 4-cylinder with more transmission gearing would work better for me. Too bad it hasn't evolved as an option, instead of making the RX bigger, fatter, and more powerful like all the other vehicles.

    Oh, and on RX300 models, REMOVE THE CROSS BARS for the luggage rack, except when you're using them. It's so easy to do. What's with all the unused racks anyway? :confuse:
  • laurasdadalaurasdada Posts: 2,480
    I drive much like you (car-wise, no bike here) for economy. As a child of the '70s, I remember gas lines... Drive like there's an egg under your foot...

    The wife seems to like to be constantly on/off the gas. Can't seem to just drive smoothly... At least, like so many, she does not speed up to a red light. I love the pinheads who get frustrated as you coast up to a red. They try to pass, honk and accelerate to a stop! Smart...

    Use the XBars for our ski rack, but you're right. I should remove 'em in the summer...

    '13 Jaguar XF, '11 BMW 535xi, '02 Lexus RX300

  • maximafanmaximafan Posts: 592
    Laurasdada, the truth is that there's quite a difference in the mpg's for city driving and highway driving in the RX. I have an '07 RX350, and most of my driving is to and from work which takes me to downtown. I only live about 6 miles from downtown, so my RX hardly has time to get warmed up. I've been averaging
    about 18 mpg's in the city. I haven't taken the RX on a trip in a while, but I believe on my last trip from Tampa, Fl to the Florida Keys, I got up to about 25 to 26 mpg's. When I first got the car in 2006, my first long trip with it to the mountains of North Georgia, I got up to about 28 mpg's. The onboard computer even showed gas mileage of up to 30 mpg for about 3 or 4 minutes!

    So it definitely does well for long trips.
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