Enigine clean?
Woa... I've never turned my car on while spraying the engine bay. I use a leaf blower after I wash the engine and let it sit for a few hours with the hood open to make sure it's plenty dry before I start it up. Stay away from simple green... corrodes the aluminum. https://ls1tech.com/forums/appearance-detailing/159036-proper-cleaning-lsx-engine-bay.html
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