2009 Limited V6, Spark plugs needs to be changed?

[JCSTEW]

Does everyone that has a 4th Generation with a V6 actually change the spark plugs every 30K miles? I purchased my 2009 4Runner with about 39K miles and it was Certified by the Toyota dealer and I did have it serviced at the dealer for the next 30K miles. The Toyota dealer never mentioned anything about changing the spark plugs. The engine runs smooth and I get about the same MPGs. I now have about 76K miles. Do I need to change the spark plugs? Thanks for all your help.

 

[FoxNJ]

I just had mine changed at 62k miles. Toyota recommended it along with new diff and transfer fluids. I have a 2007 V6 SR5 4x4

 

[JCSTEW]

OK, thank you. At the point that the Toyota Dealer mentioned the Diff and Transfer case fluid change they did not mention changing the Spark Plugs. As an aside, the Toyota Dealer wanted to charge me over $200 to change the fluids in the
Differentials and the transfer case. My local mechanic checked the fluids and they were really clean. He greased the slip joint though. He didn't charge me a dime.