Engine Degreaser is a good stuff, just spray when ur engines is HOTTT !! wait a while, it will work effectively & then flush with water...taddaaaaa !!!
But dont flush water when its Hot laa, when it until cold & flush..taddaaa
Not good when ur engines are cold.
i just changed my car batt into the maintainance-free type 13 plates 70
before this i was using the normal car battery 13 plates 70
i noticed that the rpm drops more when i on my air cond after i changed my batt...