Do car manufacturers recommend engine flushes?
Well, Honda, Ford, GM, Nissan and many others actually don’t recommend it and in many cases they advise against it. Anything that your car manufacturer recommends is covered in the owner’s manual of you car. If it’s not in there, it’s not recommended. So the next time you get told your car manufacturer recommends a flush, pull out the owner’s manual of your car and ask them to show you where.
