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Even the synthetic stuff? I run regular stuff in Powerstroke but not the synthetic stuff. Considering putting some in the Deuce in the spring.

My dad has run it in his semis for years. Last truck that he had went over 900,000 miles before the injectors went bad......the injectors were rated for 100,000 miles. Before him my Grandfather ran it in all of his company semis without issue for years. Don't use the synthetic stuff however...