IMHO Changing the plugs at 120k is fine. New emissions regulations require changes at 60k, but it won't hurt the car or performance to go 120k on plugs.

 

I agree 100% it will not hurt. When I had my SWB spark plugs changed out close to 120K my tech said the old plugs looked fine and I did not feel any performance difference with the new ones in.

 

cool no plugs for me then

 

thanks i wanted to know from somebody who actually had the plugs changed around 120 so great to know u felt no difference

 

Where did you get this info? I doubt it's correct.

 

The "2008 Warranties and Services Guide" says differential fluid is checked every 30k miles, but replaced as needed. The new manuals also say to change the battery on the key transmitter every 10k miles, but that seems excessive. I have 3 key transmitters, so I'll replace the battery when it goes out.