I have a 2005 Dodge Dakota with 130,000 miles. Recently I started to use full synthetic oil. I noticed I had a minor tap in the engine. On my recent oil change the attendant heard this tap and recommended using your Heavy Duty Oil Treatment . Almost right away the tap was gone and so far it hasn’t come back. I already use your gas treatment. THANK YOU Lucas, for such a superior line of products. I will forever use your oil and gas treatment!

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