Island relating to the duties and responsibilities of the Director for the waters of the state, and in. accordance with the requirements of Chapter 42-35, Administrative Procedures Act. Rule 3. - SUPERSEDED RULES. Upon adoption, these rules and regulations will supersede Water Quality Regulations for Water Pollution.
Using low octane fuel in a high octane engine will result in severely reduced performance because the engine will attempt to adjust to the lower octane gasoline. In extreme cases, or with prolonged use of low octane gasoline in these engines, pinging or pre-detonation can occur and can eventually destroy your engine.
Check your vehicleâs ownerâs manual to see what your car manufacturer recommends and simply go with that. If regular unleaded is all your car needs, donât spend extra on higher octane gas. Your vehicle likely will not see any improvement in performance or fuel economy â itâs not a âtreatâ for your vehicle!Premium Unleaded (91+ octane). This type of fuel has a higher octane level, typically between 91 and 93. For example, regular unleaded might be around 87 octane while premium would be 90 or 91.ven at the gas pump we face a choice â premium unleaded versus regular unleaded. But at the gas station, many of us donât know the difference or which is the better value. Hereâs all you need to know about each type of gas. Regular Unleaded (87 or 89 octane). This is the standard and cheapest option at the pump.