2009 Hyundai Sonata

Engine Performance problem
2009 Hyundai Sonata 4 cyl Two Wheel Drive Automatic 15,000 miles

My dealer says I should have their fuel injection service done shortly at the tune of 150.00. The car runs wonderfully. I use 85 octane guel and our elevation is 7000 ft above sea level. Is theere something I can do myself so that I won't be spending 150.00 every 15,000 miles. I'm 79 years old and can't afford to waste money now. Do the vaerage parts house have something that wouold clean these injector tips? Thanks
Ralph Elmore
October 13, 2010.

A professional cleaning every 15,000 mile that's way over kill.Especially if the engine run's smooth here's what i suggest try adding this product to the fuel tank next fill up.
You can probably find it at walmart cheaper.What brand of gas do you use?

Oct 13, 2010.