Blog Post View

Choosing A Motor Oil

You may have noticed that there is a page on the website entitled Choosing a Motor Oil for Use with Auto-Rx. Simply put we recommend you use an inexpensive conventional motor oil during your cleaning applications for two reasons. One it saves you money and two it allows Auto-Rx® Plus to work more effectively.

Let’s discuss for a moment the various motor specifications. Twenty years ago, choosing the oil for your car was simple. All you needed to know was the viscosity 5W-30 or 10W-30, for example, and you could get a few bottles at the local auto parts store. But this simplicity is starting to go away.

General Motors’ transition to a new oil specification for all its 2011 and newer vehicles brought new attention to the issue of manufacturer oil specifications. GM isn’t the first to require such a specification, but its move signals a change in the car-maintenance landscape.

The oil inside a modern engine might look just like it did a decade ago, but it actually is far more advanced. The American Petroleum Institute (API) and the International Lubricants Standardization and Approval Committee ( ILSAC) have set the standards for oil for the past 65 years and have changed the specifications roughly every five years. Oil needs to change to meet increasing emissions regulations, offer better protection against sludge and improve fuel economy.

The API and ILSAC standards are the baseline, automakers are free to improve upon the standards as long as they meet the minimum requirements. This manufacturer standard is more common among the German automakers, thanks to more stringent European oil specifications. Rather than have numerous blends for different regions, each automaker created one specification for its vehicles. They have brought those standards to the U.S., as Audi, BMW, Mercedes-Benz and Volkswagen all have their own oil formulations.