https://owners.infinitiusa.com/conte...2008_I_SMG.pdf

 

If you're not having any issues, I would do the basics: air filter, cabin filter, spark plugs (if needed), and maybe throw a can of BG44K in the tank.

If you want to go a little further: drain/refill the ATF maybe even swap the filter out (if automatic), but that is more work. Check/change the rear diff fluid.

 

Dealer told me they did the diff fluid when I bought it, my recent drain and fill says otherwise. Power gets put down now !

 

doing my tune this weekend. Wish me luck