Diz

I made a boo boo she says it is the OEM air filter that was replaced in the car.

Thank you for all the information it is much appreciated, we just went out and did the disconnection of the battery and will be reconnecting and going to get fuel here in a bit. As far as the rest of the maintenance, the oil changes have been religious, she has a brand new K&N air filter, spark plugs were changed a few thousand miles ago, and she has a new throttle body. The reason she was concerned is because when she got the car she got 25 mpg consistently and is now only getting 20 mpg with more highway driving than before. The fuel filter and fuel pump was recommended by a mechanic. Again thank you for all the info. I'll keep this updated with any improvements.

I did a search for the location and I must be blind because I couldn't find anything. My friend has an 01 IS300 with 108 on the clock. She isn't getting good gas mileage and she was suggested to change her fuel filter. We needed to know the location of that and also would it be a good idea to do the fuel pump as well? Any advice would be greatly appreciated. Thanks everyone.