My gas mileage is decreasing. Anything I can do? Gets 14.5 mpg and used to get 17. Love car just not mpg
Keep tires inflated to proper pressure, and car in good running order.
The RX300 we had started doing the same thing, Gave it a good tune up with platinum plugs changed all of the filters and an injector clean and my mileage went back to 20.4 at 55 mph. Speed limit out here is 55 unless you are on the interstate.
You need iridium plugs btw, not platinum.
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