This is a discussion on Is It necessary to clean under the hood of a car? within Technical Stuff, part of the Under the Hood category; Originally Posted by rahul4640 May I safely apply WD-40 to clean the engine bay on a weekend, when the engine ...
Now, here’s something where people get confused, do not under the hood of your car use spray silicone. The spray silicone can actually get into the oxygen sensors and damage them or kill them. So you never use spray silicone under the hood of a car. And if you have a comment or question, drop me a line right here at MotorWeek.