BG Frigi-Quiet for R-134a PN 7018 8 Ounce Bottle BG Frigi-Quiet for R-134a enhances cooling, ensures quieter compressor operation and prolongs compressor life. High output engines and shrinking under-hood space greatly reduce the compressor’s ability to shed heat under load. Heat stress has a devastating impact on the performance of the compressor lubricant. Most refrigerant lubricants suffer from inherent moisture absorption and breakdown due to heat. BG Frigi-Quiet is a professional use automotive air conditioning lubricant that excels in all compressor performance applications. BG Frigi-Quiet Unaffected by moisture Wide temperature range performance Unsurpassed wear protection Leak detection technology Includes a Smilyeez pocket screwdriver.