Quote:
Originally Posted by inscarguy
I dont know what manual you are reading but i checked both my 06 and 08 and they both recommend 87 octane and higher octane can be used.
This is right off the toyota website:
OCTANE RATING
Select Octane Rating 87 (Research
Octane Number 91) or higher.
Use of unleaded gasoline with an Octane
Rating lower than 87 may result in engine
knocking. Persistent knocking can lead to
engine damage.
As was this:
Does My Toyota Require Premium Gas?
Currently, there aren’t any Toyota models that require hi-octane fuel. The minimum octane rating your vehicle requires is 87 octane, which is standard pump gas or regular fuel. While it’s best to use top-tier fuel from major fuel station chains, you don’t need to use premium gas for your engine to run well.
What If I Use Premium Fuel?
There’s no need to use premium fuel in your Toyota. However, if you choose to do so, there aren’t any negative reactions that will occur. Your engine will operate properly using premium fuel without any concern.
Will I See Improvement in Fuel Mileage?
There’s very little chance that you’ll notice a difference in fuel mileage. If you do notice a difference, it will be negligible at best. Your Toyota is designed to operate at peak efficiency on regular gas, which is 87 octane.
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Mine says:
OCTANE RATING
Select Octane Rating 87 (Research Octane Number 91) or higher. For improved vehicle performance, use premium unleaded gasoline with an Octane Rating of 91 (Research Octane Number 96) or higher.
Use of unleaded gasoline with an octane rating or research octane number lower than stated above will cause persistent heavy knocking. If it is severe, this will lead to engine damage.
