engine oil

Why can’t I just add a bottle of zinc additive to my oil and then just use regular off-the-shelf oil? Won’t that work just as well as those more expensive hot rod oils that have higher zinc levels? GM used to sell an additive called Engine Oil Supplement and we used to add that to

LAS VEGAS, NV — Outdoor temperatures swing, and when they do, oil viscosity changes with them. Precision-built race engines don’t like when their oil—their very lifeblood—is imprecise, and these engines tend to protest inconsistent oil thickness by offering less-than-ideal performance (and race-day losses). Royal Purple—a long-time leader in performance motor oils and specialty lubricants—launched a

Your dad probably taught you the importance of checking a vehicle’s oil level shortly after you got your first Big Wheel. And right around potty training, he probably also trained you to “change your oil every 3,000 miles.” It’s probably one of the first things you learned about car maintenance! But what if the oil system starts to have

We take motor oil for granted. Sometimes, we don’t change it as often as we should. And when we do pour in a fresh batch of oil, we don’t always do our homework. Oh sure, we might have our favorite brands, and we always make sure to choose the proper viscosity for our needs (see our video on

Motor oil comes in many varieties. Whether you change your own oil or leave it to someone else, you’re likely going to be presented with a few different options. These options may include different oil brands, weights, formulations—even completely different motor oil types. We highly recommend changing your own oil, because it’s easy and will save