Is 93 gas Really Better?
Regular gas is rated at 87 octane in most states, while premium gas is often rated higher at 91 or 93. Essentially, the higher the octane rating, the lower the likelihood that detonation happens at the wrong time. On occasion, this occurrence will likely not harm your vehicle.
Is there a big difference between 91 and 93 octane?
Originally Answered: How much of a difference is there between 91 octane and 93 octane gas? With stock engine tuning, probably not noticeable at all since manufacturers will likely tune to 91 octane. When tuning, about 1-2% more horsepower with 93 octane.
What kind of gasoline do you use in a Toyota Highlander?
You must only use unleaded gasoline in your vehicle. 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. At minimum, the gasoline you use should meet the specifications of astm d4814 in the u.S.A.
What should the octane rating be on a Toyota Highlander?
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. At minimum, the gasoline you use should meet the specifications of astm d4814 in the u.S.A.
What kind of Octane does a Toyota engine use?
Gasoline ratings have been determined on the basis of octane; 87 octane is regular, 89 octane is mid-grade and 91 or higher octane is premium. The octane ratings are not an indication of performance, but instead, indicate the fuel’s resistance to pre-ignition. The engine of your Toyota operates with a mixture of air and fuel.
What is the octane rating of unleaded gasoline?
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. At minimum, the gasoline you use should meet the specifications of astm d4814 in the u.S.A. And cgsb3.5-M93 in canada.