Review on Enhance Your Engine'S Performance With Rislone Hy-Per Lube HPL201 - 32 Oz,1 Quart by Rob Bishop

I have been changing oil a LONG TIME and have used many products including LUCAS, STP, etc. and from now on it is this product in the motor. I have two Buicks with the 3.8 V6 Series 2 engines among 4 other vehicles. Now, these motors are good engines but they tend to be a bit "thrashy" for lack of a better word. They sound like sewing machines at start up and quiet down a bit when warmed up. This Hy-Per Lube product seems to dissipate some of the start up and run "sewing machine" noise. The engines are definitely quieter. I only use synthetic oils and Royal Purple filters so the change in engine noise is attributable to this product. I only write reviews that are honest in nature and have no manufacture affiliation with Hy-Per Lube. I believe you will not be disappointed with the product however it is not to be used to refrain from regular oil changes. It is a perfect fantasy believing one can drive with "extended life" motor oils for longer than recommended changes but engine heat and weather conditions dispel that myth.