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Tag: DuraGuard

Results in on Three 5W-30s and One 15W-40

The Petroleum Quality Institute of America tested three brands of 5W-30 and one brand of 15W-40 motor oils. The results of the tests conducted on samples of the brands meet the SAE J300 specifications for the SAE Viscosity Grade listed on the product label, and are consistent with the listed API Service Categories. CLICK BOTTLES… Read More ›

Results in on Three 5W-30s and One 15W-40

The Petroleum Quality Institute of America tested three brands of 5W-30 and one brand of 15W-40 motor oils. The results of the tests conducted on samples of the brands meet the SAE J300 specifications for the SAE Viscosity Grade listed on the product label, and are consistent with the listed API Service Categories. CLICK BOTTLES… Read More ›