Originally Posted By: Razl
Toyota specs 5W-30, not 0W-20 officially but I've seen some UOAs that show 0W-20 works well in the Prius. I wouldn't be surprised if Toyota switched to a xW-20 with the 2009 Prius.
Steve, nothing wrong with the 5W-30 Toyota oil, it's just that I prefer full synthetic protection and the slight MPG improvement (the Energy Monitor teases you beat your MPG record each time you drive it). So you and FZ1 think I should just forget the Mobil 1? I'd have no prblem running longer intervals with M1 but not until the powertrian warranty runs out.
IMO, you wont see any improvement with a 0w30, but if you really wanted to get the most......I'd take the dealer changes and go on the maintenance dose of Auto-RX. That way you are guaranteed to have your engine running its whole life at the most efficient and clean as it can possibly be. Not to mention you'd probably lower the emissions just a hair, too.
Toyota specs 5W-30, not 0W-20 officially but I've seen some UOAs that show 0W-20 works well in the Prius. I wouldn't be surprised if Toyota switched to a xW-20 with the 2009 Prius.
Steve, nothing wrong with the 5W-30 Toyota oil, it's just that I prefer full synthetic protection and the slight MPG improvement (the Energy Monitor teases you beat your MPG record each time you drive it). So you and FZ1 think I should just forget the Mobil 1? I'd have no prblem running longer intervals with M1 but not until the powertrian warranty runs out.
IMO, you wont see any improvement with a 0w30, but if you really wanted to get the most......I'd take the dealer changes and go on the maintenance dose of Auto-RX. That way you are guaranteed to have your engine running its whole life at the most efficient and clean as it can possibly be. Not to mention you'd probably lower the emissions just a hair, too.