0W-08 Engine oil
- Thread starter Al
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If it says to use 8 grade then you can use 30 grade. Here's a post I made about it some years ago.
https://bobistheoilguy.com/forums/threads/0w-8-in-the-new-non-us-yaris-hybrid.341590/
https://bobistheoilguy.com/forums/threads/0w-8-in-the-new-non-us-yaris-hybrid.341590/
But any gains in fuel mileage would be offset by the engine replacement cost after 0W-04 damaged the engine.
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API SZ and DexOS 1 Gen 28
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Fake news and alarmist nonsense
It was just some humor. The closest we got to testing 0W-4 was on the Lincoln Navigator BITOG thread, when the OP put 0W-5 oil into an engine speced for 5W-30. After 1,000 miles, there were visible pieces of metal in the oil filter.
How will that 169HP powerhouse ever survive… 
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Lies and propaganda
0w-30 seems fine as long as you know the oil temperature isn't going above 230f or the manual doesn't tell you to use a 40 weight for your application or operating environment.
It's more testing than I'm willing to do.
My friends has an original owner 2000 Pontiac Sunfire with the original engine and 440,000 miles on it. His secret is mid quality 5w-30 and 5,000 mile oil changes. Also on the original catalytic converter and it doesn't burn oil.
Yeah exactly.
Man if people read the owners manual that would eliminate like 80% of the questions on here.
In the US based 2008 Toyota Corolla owners manual, 5W-30 is the only viscosity listed for all temperature ranges. It mentions 10W-30 can be used if 5W-30 is not available, but on the next oil change you must go back to 5W-30.
Toyota/Lexus been writing this language forever, my lexus 2012 es350 has the same language. In 2013 es350 went to 0w-20, and they did ZERO changes to any of the internal engine parts 2GR-FE engine.
The only reason they put this language is because they realize 0w-8 might be difficult to find in some areas
Yeah and going to 0w-20 back in 2013 Toyota got to post the mpg numbers a little bit higher for that car, then that raised their cafe number slightly.
Don't hate the players, hate the game.
I personally believe that if CAFE didn't exist, all cars would likely be speced for 5W-30.
we have a fleet company that gets all their vehicles serviced at my work, all the cars they use are toyotas new and old including ones that call for 0w-08 0W-16etc, the company requests 5w-30syn in all their vehicles. some of these vehicles have well over 100k miles all running on 5w30 with 0 issues.
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