Answer :
Final answer:
It is generally safe to mix 87 and 89 octane gasoline in any proportion without issues. Mixing a lower octane fuel with a higher octane fuel will result in a blended fuel with an octane rating somewhere between the two. It is important to follow the manufacturer's guidelines and use the appropriate octane level for your vehicle.
Explanation:
When it comes to mixing different octane gasoline, it is generally safe to mix 87 and 89 octane gasoline in any proportion without issues. The octane rating measures the fuel's ability to resist knocking or pinging during combustion, and a higher octane rating means a higher resistance to knocking. Therefore, mixing a lower octane fuel (87) with a higher octane fuel (89) will result in a blended fuel with an octane rating somewhere between the two.
For example, if you mix equal amounts of 87 and 89 octane gasoline, you will end up with a blended fuel with an octane rating of around 88.
It is important to note that if your vehicle requires a higher octane fuel, mixing lower octane fuel may not provide enough resistance to knocking and could potentially harm your engine. Therefore, it is recommended to follow the manufacturer's guidelines and use the appropriate octane level for your vehicle.
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