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Pro-Spec® Synthetic Motor Oil

PRO-SPEC® SYNTHETIC MOTOR OIL 5W/20, 5W/30 and 10W/30 provides premium performance and protection for the severe service, medium and light duty applications found in passenger vehicles. This oil provides maximum protection and extended oil change intervals with laboratory analysis for all types of industries, including gasoline passenger vehicles found in construction, logging, farming, city transit and others.

Full product specs:


Made With High Quality Base Stocks

PRO-SPEC®  is a synthetic oil, which incorporates the purest and finest severely hydrocracked and hydro-finished base stocks available today. This unique combination of base stocks means PRO-SPEC® provides improved oil flow for superior cold cranking protection. In addition, when high engine operating temperatures are encountered, which is common in today’s low emission engines, this unique synthetic oil ensures a superior oil film of protection for vital moving engine parts.

The pure and highly refined base stocks in PRO-SPEC® contribute to an oil with low oil volatility. Thanks to the base stock’s ability to resist oxidation during high heat operation, you use less oil due to consumption and evaporation. This means longer service life for the oil and reduced oil consumption, yet better engine protection. PRO-SPEC® synthetic base stock, along with an outstanding additive package, means no varnish, gum or sludge build-up on internal engine parts.


Improved Performance Additives

PRO-SPEC’s formulation provides improved performance in the latest gasoline engines. Fuel economy benefits are improved, including fuel economy durability which is a demonstration of fuel economy throughout the oil drain interval period. Enhancements of the formulation with friction modifiers and superior detergents will help achieve these fuel economy benefits. PRO-SPEC® exceeds the GF-4 and the GF-5 category, which addresses the need for emissions system protection, improved high-temperature deposit control and oil consumption, as well as the fuel economy benefits.

Extensive testing has been carried out to ensure protection against sludge, varnish, corrosion, wear and oxidation.


For The Latest Gasoline Engines

Manufacturers have changed engine designs to lower emissions, improve fuel economy, and lubricant manufacturers have adopted new testing procedures, which are more relevant to the modern-day needs of the original equipment manufacturers.

Texas Refinery Corp’s PRO-SPEC® meets the latest gasoline engine specifications, both under the American Petroleum Institute’s (API) standard and the International Lubricants Standardization and Approval Committee (ILSAC) standard. PRO-SPEC® is formulated to meet API’s SN category, ILSAC’s GF-4 and GF-5 category. Key benefits are improved fuel economy, reduced oxidative thickening, better high temperature deposit control and lower oil consumption.


Provides Winter & Summer Protection

PRO-SPEC® SYNTHETIC MOTOR OIL for gasoline engines provides an easy start in the winter, plus extra protection in the summer. The multi-viscosity capabilities allow the oil to flow quickly, resulting in quicker warm-ups. At the same time, the engine receives protection because it maintains its viscosity at higher temperatures. PRO-SPEC® is available in 5W/20, 5W/30 and 10W/30 weights.


Contains Superior Additives

PRO-SPEC® SYNTHETIC MOTOR OIL contains several superior additives. Texas Refinery utilizes high-quality quality zinc anti-wear protection. Other special additives inhibit rust, corrosion, oxidation and foaming. PRO-SPEC® SYNTHETIC MOTOR OIL is able to virtually eliminate sludging, allowing longer drain intervals. The increased drain interval, with protection to the equipment, translates into a very economical oil.


Extends Equipment Life

The special additive package in PRO-SPEC® SYNTHETIC MOTOR OIL separates it from the everyday brand of motor oil now being used. Its unique additive package contains special friction modifiers. These special friction modifiers provide a full fluid film lubricant between moving parts. This special friction modifier helps reduce wear, extend equipment life, reduce maintenance cost and can even help improve fuel economy.

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