JUST CHECKING TO SEE IF ANYONE HAD TRIED THE ANY OF THE PRO BLEND ADDITIVES. AFTER READING FOUR WHEELER MAGAZINES PROJECT MPG, IT LOOKS LIKE A GOOD IDEA, JUST THOUGHT I WOULD SEE IF ANONE ELSE HAD TRIED THEM BEFORE I ORDER ANY.
http://performanceunlimited.com/projectmpg/
http://oil-additive.com/Pro-BlendMotorsports.html

 

Snake oil. If you look at the fine print, the truck was changed over to Torco synthetic fluids at the same time as the Pro-Blend. How can you determine that it was the additives and not the Torco that made the difference. Synthetic drive line oils can increase mileage, especially for short trip driving. Generally, additives are a waste of money and may be harmful if they conflict with the additive package already in the oils.

Jim