I just read about a guy using atf in his 03 excursion and hes put over 10k on it and said it runs fine. He mixes it 90% atf and 10% diesel. I heard that newer atf has friction modifiers in it and will damage the injectors. Is this true? Or does the used atf lose its friction modifying properties when it's used? I've thought about running it but I don't want to ruin my truck. There was a article in diesel powermag this month on it.