I've got roughly 44k miles on my 02 SE 6-speed. Is it a good time to switch to synthetic oil? Can I buy synthetic transmission oil at autozone? or do I have to buy it online? I'd like to switch my engine oil to synthetic, and then the transmission oil later on.

Is there any performance benefit from going to synthetic?

 

no performsnce I think, but thr engine run cooler and is cleaner than regular oils.....Mobi l

 

0 performance gains but better friction protection. Best price I've found for Mobil 1 is wal-mart in a 5q jug. No idea about tranny fluid.Cooler? Mmm, no.

 

Less Friction means more power, technically . Will you feel the extra power? That would be a big no. And yes the engine is protected better but doesn't run cooler. Amsoil 5w-30 for the Maxima is the way to go!

 

Mobil1 5w30 at walmart is the easiest.

Tranny fluid however must be bought online. Again GL-4. Redline MT90 or Amsoil is your best bet. Check the Manual fluid change on the difference. I bought some amsoil series 2000 75w90 from talkinghorse on the org for pretty cheap. I will probably do it again pretty soon.