WMotor oil
WTwo-stroke oil
W3,000 mile myth
WAutomotive oil recycling
WBardahl
WCastrol Technology Centre
WElf Aquitaine
WFuchs Petrolub
WHavoline
WLiqui Moly
WLucas Oil
WMarvel Mystery Oil
WMobil 1
WMopar Automatic Transmission Fluid
WMotorex
WNaftal
WPennzoil
WQuaker State
WRoyal Purple (lubricant manufacturer)
WSTP (motor oil company)
WSynthetic oil
WToyota Automatic Transmission Fluid