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I was asked to take part in a review of Royal Purple products by the DF team. Here is my review on their products so far. This stuff was free to m and I'm not getting paid to write a review. Just my thoughts on the products and results of thier use. I'm also one of those guys who does not put much faith in "additives" or really expensive oil. This is what I received:
I went ahead and added the coolant additive to the radiator and I have put one bottle of the fuel injector cleaner in our 2013 Dodge Journey with close to 85,000 miles. I had just changed the oil, so it might be awhile before I can use that. I will post up results or changes as I see them.