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 - SUPERSEDED RULES.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.
You get gasoline with the combined octane. If you mix a half tank of 91 octane and a half tank of 89 octane, you end up with a full tank of 90 octane. Unless you are driving a car that requires 93 octane, you wonât damage a thing. Reality check here: Gas stations that provide three different octane grades of fuel only have two storage tanks of gasoline.