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Have you ever wondered what the Octane Rating of Gasoline is? Every time we go to a gas pump to fill our car’s tank, we always have the choice of what octane rating we wish to put in. More than…

The following process will cover the DOHC engine of the 1993-1995 Honda Prelude (OBD-I) 1 – With the engine cold, remove the upper timing belt cover, the valve cover, the spark plugs, and the distributor cap. Exhaust and intake valves…