[cleanspeed1]

Welcome aboard.

Do a search here on the site for results of using aftermarket filters, plugs, etc.

Others on the site have your car or a Toyota product and they can confirm or refute the claims by personal experience of said products.

Me personally, using the stock recommended equipment is a safe way to go.

Never go by anecdotal advice, get a service manual and learn about your car, what it needs and where various parts are.

If you don't know if something has been done, do it, especially timing belts and tune ups, and keep records and documentation.

The main thing about eco is adjusting driving habits and technique moreso than just putting parts on a vehicle.

Look at the efficiency mods and hypermiling techniques. Study them. Use them. You will see your mpg go up.