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Question
Mr. Ritter,
I have 2 Toyotas, 93 4x4 pick up and a 2000 Rav4.  We just moved to a state that uses 10% ethanol in the gas.  I have heard this causes a lot of condensation in the fuel tank and corosion through out the whole fuel system.  
Is there a  fuel additive I should be adding to eliminate this problem or something to help this problem?

Thank you,
Rick

Answer
Hello, I am not aware of any problems caused by 10% ethanol fuel mixture but I can't rule out that possibility under certain circumstances, if you decide to use fuel treatment use a Lucas product or use good quality fuel which should have rust inhibitors added.

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Ted Ritter

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I have more than 28 years experience as toyota technician, I will be able to answer most questions related to the Toyota product line up to the present year models,I am located in the US but welcome questions from other regions of the world. When asking a question please provide specific information: year,model, engine,transmission information. Provide as much information as possible including a brief repair history if possible. I have been a volunteer here for more ten years an have answered over 16,000 questions helping Toyota owners with their problems and save thousands of dollars without any compensation, some of my answers are published on many other websites including google and various automotive forums. DONATIONS ARE VERY MUCH APPRECIATED, IF YOU HAVE RECIEVED HELPFUL INFORMATION PLEASE MAKE A DONATION. AS OF TODAY (JULY 22, 2014) ALL REQUESTED GRAPHICS, ILLUSTRATIONS, DIAGRAMS, PHOTOS, WILL REQUIRE THE MINUMUM DONATION UP FRONT.

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Toyota technician since 1979,expert in electrical systems,OBD systems,engine repair, driveability problems,EFI systems,ASE certified,Toyota master technician.
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Toyota master technician, ASE certified in eight catagories, Hybrid vehicle certified. Toyota technical training: Engine Automatic transmission Manual transmission Drivetrain Electrical systems Brakes and chassis Air conditioning Engine performance and diagnostics Hybrid systems

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