Well it's been a week and I think I am seeing results. I filled it up then poured the whole bottle in my 06 F350 and so far so good. I'll try it again at my next oil change and get back to you all.
In over 50 years I have just about tried every kind of fuel conditioners on the market for diesel engines. This one was different, I could feel the gains from using this product almost immediately. Would recommend this product to anyone with a diesel engine. Jerry