ssds Posted August 29, 2010 Share Posted August 29, 2010 Hi, Got a new '10 RX 450H last week and have put about 200 miles on it - mostly highway, but in rush-hour traffic that is very city-like. Very disappointed with the mileage I'm getting so far - about 16.7 mpg. What gives? Is there a break-in period after which I'll see better mpg? Is it because the hybrid battery is not fully charged? Any help/advice appreciated. Thanks. Quote Link to comment Share on other sites More sharing options...
BlueSurf Posted August 30, 2010 Share Posted August 30, 2010 Hello, My RX450h now has 5400 mi. I'm now getting 27-28mpg city. 28 highway. It will get better as it breaks in. Many things no longer need a break in period, however the engine does. Enjoy your car. Quote Link to comment Share on other sites More sharing options...
ssds Posted September 6, 2010 Author Share Posted September 6, 2010 Hello, My RX450h now has 5400 mi. I'm now getting 27-28mpg city. 28 highway. It will get better as it breaks in. Many things no longer need a break in period, however the engine does. Enjoy your car. Thank you. Took the car out for a 300-mile highway drive yesterday and got 29.2 mpg. Quite pleased with it now. Quote Link to comment Share on other sites More sharing options...
RX1 Posted February 12, 2011 Share Posted February 12, 2011 I have a 450h since nov.2009 My Gas consumption is 28 to 30 mpg at mix Quote Link to comment Share on other sites More sharing options...
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