THE PETROLEUM QUALITY INSTITUTE OF AMERICA​

The independent resource for information and insights on the quality and integrity of lubricants in the marketplace

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THE PETROLEUM QUALITY INSTITUTE OF AMERICA​

The independent resource for information and insights on the quality and integrity of lubricants in the marketplace

Menu

2015 Motor Oil Samples Tested

Click on the Samples Below to See the Results of Products Tested in 2015

3XSAE10W40FrontFinished3XSAE20W50FrontFinished7Eleven5W30FrontFinished7Eleven10W40FrontFinishedAccel5W30FrontFinishedACESAE15W40FrontFinishedAgipAllGuardXHD7SAE15W40AgipSuperXLSAE5W30AmericanXT5W30FrontFinishedAmericanXT10W40FrontFinishedAuto Xtra SAE 30 Front FinishedAutoXtraSAE15W40FrontFinishedAutoZoneSAE30NDFrontFinishedAutoZone10W30FrontFinishedBeck0W20FrontFinishedBlackKnightSAE30FrontFinishedBlackKnightSAE40FrontFinishedBlackKnight530FrontFinishedBlackKnight1030FrontFinishedBlackKnight2050FrontFinished2Blairs15W40FrontFinishedBradPennSAE15W40FrontFinishedBullseye Lubricants SAE 10W-30 Front FinishedCam210W30FrontFinishedCAM2SuperHDSAE15W40Caseys 5W30 Front FinishedCastrolGTX10W40FrontFinishedCastrolGTXDieselSAE15W40CenexAutoGold10W30FrontFinishedCenexSuperLube15W40FrontFinishedDelo400LESAE15W40Havoline5W20FrontFinishedHavoline10W40FrontFinishedConocoGuardolECTSAE15W40ConocoFleetSupremeECSAE15W40Do It Best SAE HD-30 Front FinishedDollarGeneralSAE30FrontFinishedDollarGeneral10W30FrontFinishedDollarGeneral10W40FrontFinishedDuraMax5W30FrontFinishedEssential SAE5W30 Front FinishedEverclear1040Harvest King SAE 30 Front FinishediSintSAE0W20Jackson 5W30 Front FinishedJackson 10W30 Front FinishedLifeCycleSAE10W30LovesSAE15W40FrontFinishedMAG15W20FrontFinishedMAG110W30FrontFinishedMarathonSAE15W40FrontFinishedMobilDelvacSAE15W40MobilSpecial5W30FrontFinishedMotorCraft SAE5W30 Front FinishedMotorcraftSAE15W40Orbit5W30FrontFinishedPeak5W30FrontFinishedPeak10W40FrontFinishedPennzoil10W30FrontFinishedPentoSuper5W30FrontFinishedProForce SAE 10W30 Front FinishedProline5W20FrontFinishedProLine10W40FrontFinishedProLineSAE15W40PURATECHSynSAE10W30QuakerStateSAE5W30712015FinishedRK SAE5W30 Front FinishedRuralKingSAE15W40FrontFinishedSafeway5W30FrontFinishedSafeway10W40FrontFinishedRotellaTTripleSAE15W40RotellaT5SAE10W40ShellRotellaT6SYNSAE5W40Spectrol SAE 30 Front FinishStarFire0W20FrontFinishedFullSyntheticStarFire5W20FrontFinishedFullSyntheticStarFire5W20FrontFinishedSTP 5W30 Front FinishedSupers SAE40 Front FinishedSuperSSAE5W20FrontFinishedCustomPlusMotorOilSAE10W30SuperSSAE15W40FrontFinishedSuperXXX10W30FrontFinishedSuperTech SAE5W30 Front FinishedSynGuard SAE5W30Front FinishedTravellers15W40FrontFinishedPhillips5W30FrontFinishedTruStar1040FrontFinishedWarren Coastal SAE 30 ND Front FinishedWarrenLubrigaurdSAE15W40LubriGold5W30FrontFinishedXcelSAE10W30FrontFinishedXcelSAE10W40FrontFinishedXcelSAE5W30FrontFinishedXcelXHDSAE10W30FrontFinishedXcelXHDSAE10W40FrontFinishedXpressLubePro5W30FrontFinishedXpressLubePro5W30FrontFinishedXpressLubePro10W30FrontFinishedXpressLubePro10W30FrontFinishedXpress Lube Pro 10W-40 Front FinishedValvoline5W20FrontFinishedWinnersCircle10W30FrontFinishedWolfs head SAE30 ND Front FinishedWolfsHeadSpDuty5W30FrontFinishedWolfsHeadExtremeDutySAE15W40ZecolMax SAE5W30 front finished

PASSENGER CAR MOTOR OIL

PETROLEUM QUALITY INSTITUTE OF AMERICA SAMPLE SUMMARY/PASSENGER CAR MOTOR OIL Passenger car motor oil is the lifeblood of your engine. In addition to lubricating moving

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