garvard Posted December 25, 2006 Share Posted December 25, 2006 Hi. During last period I found that my '99 RX300 with 115K miles used too many fuel. The display shows 12-12,5 MPG on urban driving. Who know: what could happen? And to increase? Thanks for any advice. Quote Link to comment Share on other sites More sharing options...
Rillo Posted January 10, 2007 Share Posted January 10, 2007 - Try Cleaning the AirFlow Sensor - see MAF sensor cleaning instructions - Check for siezed Brake Caliper? - Fuel Pump losing power?? - Have Fuel system cleaned?? In UK we have stuff like REDEX but not sure if you guys have that in the US?? - Have diagnostics check to see if any oxygen sensors are out of kilter. Quote Link to comment Share on other sites More sharing options...
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