I own a honda pilot and a 2006 Avy. Just visited my local Sams Club and they have mobile 1 5w-20 on sale in 6 qt boxes for $12. WOW--Picked up 2 oil change worth for my Pilot. NOW, any reason I should fear using it in the Avalon?? If Ford and Honda engines use it (5w-20)all over the country (including the hot desert South West) is the Avy engine any lesser tolerance that I can't use it up here in Wis??? HMMMMMMMMMMMM
Just use what the Manual recommends. The Avalon engine is a very precise engine and the engineers at Toyota spent ALOT of time and money to research, test, and develop our engine. Don't you think you should trust them more than this forum???
If you can't afford a few extra dollars for the right oil, then why buy such an expensive vehicle?
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2006 Avalon Touring Edition
Two D612D4's run off a D61000.1 w/ a 1.2 farad cap, in custom fiberglass sealed enclosures.
Soon to come: Tinted windows. K&N intake kit. High-flow exhaust. And a set of 20's (maybe 18's). http://www.cardomain.com/ride/2155533
HMMMM...just did a little "googling" this morning and it looks to me like 5w-20 is now THE RECOMENDED OIL for toyota and lexus engines made from 2006 on and is what the factory is using for the first "fill".
Two D612D4's run off a D61000.1 w/ a 1.2 farad cap, in custom fiberglass sealed enclosures.
Soon to come: Tinted windows. K&N intake kit. High-flow exhaust. And a set of 20's (maybe 18's). http://www.cardomain.com/ride/2155533
I wouldn't use that oil, 5w30 already drains out like water after 3000 miles.
That has nothing to do with it. It's not an oil's ability to be thick - it's the oil's ability to protect components from metal-to-metal contact and to carry away heat without viscous breakdown. Mobil-1 oil, being a full-synthetic, can provide that even at 5W-20.
you might be right but have you ever driven a cars with old thinned out oil? you hear the engine ticking and clackin' then do and oil change and the engine sounds go away after you put in some fresh "THICKER" oil in. To me it seem like then engine runs better.
They probably want you to use that thin oil so the engine wears out quicker and you buy another car from them, lol
5w20 oil has less film and shear strength than a 5w30, 10w30 or a 0w30 motor oil. This can lead to increased engine wear under today's demanding heat and high-stress engine performance conditions.
Through the years (I'm older'n dirt) I've performed at least a thousand oil changes during my stints as mechanic's helper, 'oil-change-guy' and on my own cars and trucks. What you're describing (quieter after an oil change) occurs no matter what oil you use.
The reason newer engines call for the lighter viscosity oils is because of tighter engine tolerances. A lighter oil will circulate much quicker than a thicker oil will. It's very important to get the oil up to the heads very quickly. A thicker oil in colder climates will allow more metal-to-metal contact than a thinner oil will. Then we're talking about premature wear and buying a new car...
Through the years (I'm older'n dirt) I've performed at least a thousand oil changes during my stints as mechanic's helper, 'oil-change-guy' and on my own cars and trucks. What you're describing (quieter after an oil change) occurs no matter what oil you use.
And it quites down why?
My logic says it's because you're putting in fresh oil that's not thinned out like water.
Quote:
The reason newer engines call for the lighter viscosity oils is because of tighter engine tolerances. A lighter oil will circulate much quicker than a thicker oil will. It's very important to get the oil up to the heads very quickly. A thicker oil in colder climates will allow more metal-to-metal contact than a thinner oil will. Then we're talking about premature wear and buying a new car...
5w20 and 5w30 are the same weight at start up. 5w20 just "thins out" more when it gets warmed to operating temperature. So just like the guy said in the write up in the above link "5w20 has less film and shear strength than a 5w30"
Never heard my Honda Pilot or Accord "click, tic, or toc," with 5w20---I doubt that my Avy would. AND....anyone that likes to change oil on today's cars with todays oil at 3000 mi really likes to waste money.
I use conventional oil so I change it every 3k, I'm doing it myself so it doesn't cost me much. Sure I could put in synthetic and change it every 6k but it ends up costing the same amount and I don't like leaving oil in the car for 6 months.
If I was driving a 100 miles a day I'd probably switch to synthetic and change it every 6k.
The owner's manual for the 2008 Avalon recommends 5W-30.
Very interesting is that the Toyota Repair Manual for the 2008 Avalon (Repair Manual Volume I) recommends the same type of oil but then in parenthesis states the following:
"0W-20 is best choice for fuel economy and good starting in cold weather".
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