While a certain zinc threshold is good, too much zinc “will break down the oil,” Fischer said. We can use less zinc when it’s sulfur-based, which leaves room for more good stuff for our tribologists to add to the package.” Hot Shot’s Secret formulates its oil with a sulfur-based zinc which, Fischer admitted, is expensive but is also “a better zinc agent. “Probably 98% of the industry uses ZDDP,” a phosphorous-based zinc. In a race application, “we beef up the zinc package far more than in a standard passenger car oil because of all the extra anti-wear that’s needed,” Fischer said. Of the anti-wear and friction-reducing additives used in race oil, one of the most common anti-wear agents is zinc. “The man-made synthetics have film strength, molecule-size consistency, and lubricity that are far superior and unmatched by mineral oils.” The traditional synthetic oils are Groups IV and V, the polyalphaolefins (PAOs) and esters that LAT Racing Oils uses as its base oil, he said. Base oils are categorized into five groups. While much attention is paid to oil additives, high-quality base oil is critical for race engine protection, said Danny Vaca of LAT Racing Oils, Orange, California. We want our customers to stay on track all year and not worry about refreshing their motors multiple times a season.” “Our goal is to slow the rate at which the engines eat themselves. “A race engine generally operates under tight tolerances and extreme horsepower loads, and under those conditions wear takes place,” said Kyle Fischer of Hot Shot’s Secret, Mt. With unpronounceable ingredients like molybdenum, zinc dialkyldithiophosphate, and polyalphaolefin, is it any wonder that engine oil and its additives can be mysterious and confusing? To explain these and other tribological terms and shed light on how to best use them, we spoke with representatives from some of today’s top lubricant companies specializing in racing oils. Learn how to reduce friction under the hood, along with the factors that’ll help racers arrive at a solution that’s optimal for their particular application. At Hot Shot’s Secret, “Our goal is to slow the rate at which the engines eat themselves,” said a company contact, who explained that “horsepower gains are just a byproduct of an effective racing oil freeing up horsepower by reducing wear.” Pictured here is Hot Shot’s Secret’s FR3 Friction Reducer, which has been formulated using carbon nanotechnology.
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