Hello All,

I need some help here. I have a 2004 4 runner with about 42,000 miles on it. Lately, my mileage really sucks and very poor fuel economy. i was wodnering what i can do to boost fuel efficiency. What if any maintenance i need to do on this truc? The only maintenenace i did ont his truck so far is just oil change, spark plus cabin ari filter and engine filter. Do i need to change the transmission fluid, do a fuel system flush, engine coollant flush, throttle body flush, etc. Are any of the fluid flush cleaning necessary for the 4 runner? I don't know how everyone maintain their 4runners. For example i get about 180-200 miles per hald gallon. About 340-350 for a full tank. Is that considered good? I just don't know if i need to do any maintenance service as the manual doesnt list that many only oil change and spark plugs every 30k miles. Any suggestions would be appreciated. Thanks