5W20 or 5W30?

[TheSilkySmooth]

The 08 car is supposed to use 5w-30 not 5w-20. You guys are misreading the TSB which I will say is poorly written and makes it confusing. Right at the top of the tsb EGO18-06, it says at the TOP in a big RED BOX, 'NOTE: to use what the oil filler cap says or the owners manual or the Maintenance manual for you year/model!' The tSB is saying that toyota recommend GF4 oils now (not ILSAC GF3 - the factory fill) and that newer models are transitioning to 5w-20. BUT NOT THE 08! Re-read the TSB and tell me which part you dont understand. I have not called Toyota to get this clarified, as I tried 5w-20 Mobil1 and the engine made so much racket I dumped it in 15 minutes of putting it in.
So not to be an ass ... Hey, if your car runs quiet and smooth and gets good gas mileage, running the the 5w-20, stick with it! You got an out with the crap TSB. I would verify with the selling dealer service manager though and get it in writing on a R.O. in the system.