can we use wd40 on engine pipes for removing oil residue. There seems to have some engine oil residue and some transmission oil residue
and there has been some kinda residue on battery too. Can we use wd40 as a cleaner ? like spraying with its small straw like pipe and then cleaning with brush? I dontwana use engine degreasers since they require washing out with water and my car seems to be sensitive to water in engine bay
