Review on Lubegard 30916 Heavy Engine Protectant by Greg Moore

UPDATE January 2017: All claims are still 100% correct, I have tried this on my lawnmower (165cc Honda engine) and it has noticeably reduced engine noise. I mean the woman commented on it. In addition, it is now much harder to brake. The same gasoline. The same spark plug. I am impressed. Cold start smoke has also been eliminated. This significantly and noticeably reduced the engine performance of my 2013 Ford Explorer 2.0 Turbo, Impreza Outback Sport 99 2.2 and 2011 Outback 3.6R Limited. All three now have zero valve noise on cold starts and idle in virtual silence with minimal cooling fan activation. The engines seem to spin more freely, and there's been a 0.5mpg improvement on the Explorer, a 0.7mpg improvement on the Outback and a 1mpg improvement on the Outback Sport. I am immediately satisfied. And it has been added in the right proportion to synthetic oil (Pennzoil Platinum, PP High Mileage and Castrol Edge Titanium Gold Bottle). Thus, the effects are not minimized. I will continue to update, but I am very satisfied. I didn't expect such a significant improvement in engine smoothness from these three vehicles.