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Old 07-31-2005, 10:36 PM
kip Foss kip Foss is offline
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Join Date: Jul 2002
Location: S. Texas
Posts: 1,237
If you can run your car through a puddle of water and have it splash up under the hood all over a hot engine you can certainly wash your engine when it is hot. That being said it is better to let it cool a bit if for no other reason than most engine cleaners are petroleum based and the heat will cause them to partially evaporate there by loosing some of their effectiveness. Oven cleaners work particularly well on warm engines esp. where you have a build up of heavy grease. There is nothing in your engine compartment that oven cleaner will harm. If there was it wouldn't withstand 25 years of hot oil, grease. road grime, cold, heat, etc.
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