10w30 won't always be thicker than 5w30 at startup, it depends on the ambient temperature. The 10w30 will only be thicker around freezing temperatures IIRC.
2006 Scion TC - Sahara Desert of Phoenix
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10w30 won't always be thicker than 5w30 at startup, it depends on the ambient temperature. The 10w30 will only be thicker around freezing temperatures IIRC.
Given your climate, a 0w-30, 5w-30 or 10w-30 won't matter at all. Choose any of them.
If you like the feeling extra protection gives you in regards to using a synthetic oil, go with a true PAO based oil, namely Castrol Syntec 0w-30 or Amsoil 0w-30.
If you like the feeling extra protection gives you in regards to using a synthetic oil, go with a true PAO based oil, namely Castrol Syntec 0w-30 or Amsoil 0w-30.
Oh, ok. Thanks for setting that straight.
OK, then just use straight 30 like I use to when I was down there
If you buy the new Havoline Deposit Shield 10W-30, it's already thinner than the average 5W-30; it's almost like being pre-sheared.
With all the Deposit Shield bashing I do on this board, I'm surprised no one has called me out onto the carpet yet.
It would not hurt anything at all to run 10w30 in the Summer. I usually run 10w30 in the summer.
mehere,
I beleive that you answered your own question. "There are SERIOUSLY no cold start issues in the desert". I think that you can't go wrong with any oil mentioned here. And I personaly beleive that any name beand dino 5W30 or 10W30 will handle the heat of Phoenix. I've moved my daughter into her appt. in August(115-118 deg F) as she attends ASU in Tempe. If longevity is a concern then synthetic is your best bet. But I think that the drivetrain in your tC will outlast the dashboard and paint job failure caused from the Arizona sun. One more thing! I've been in a couple of the dust stormes in Phoenix/Tempe and I would encourage keeping your air filter changed regularly using either the Toyota air filter or other name brand replacements(NO K&N). Way too much dust, dirt and sand in your area for a K&N.
I beleive that you answered your own question. "There are SERIOUSLY no cold start issues in the desert". I think that you can't go wrong with any oil mentioned here. And I personaly beleive that any name beand dino 5W30 or 10W30 will handle the heat of Phoenix. I've moved my daughter into her appt. in August(115-118 deg F) as she attends ASU in Tempe. If longevity is a concern then synthetic is your best bet. But I think that the drivetrain in your tC will outlast the dashboard and paint job failure caused from the Arizona sun. One more thing! I've been in a couple of the dust stormes in Phoenix/Tempe and I would encourage keeping your air filter changed regularly using either the Toyota air filter or other name brand replacements(NO K&N). Way too much dust, dirt and sand in your area for a K&N.
Go to Walmart and pick up a some Rotella-T Synthetic 5W40. Your engine will like it you will like it and your UOA will look great!
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