Counterfeit oil: the corner most often cut, and how to catch it
The UAE has an active enforcement history against counterfeit lubricants, with raids periodically turning up thousands of litres of fake branded oil. The economics explain why: bulk mineral oil rebottled as premium synthetic sells at a premium synthetic price, and fake oil does not announce itself. The engine runs normally for weeks while the oil shears out of grade and deposits form, and by the time symptoms appear the van is long gone.
Your defences are simple. Insist on sealed retail containers opened in your presence, never oil decanted from an unmarked drum. Photograph the batch code, and use the scratch-code or QR authentication most major brands print for the Gulf precisely because this market has a counterfeiting problem. Price is the other signal: genuine oil meeting a current API SP or European approval has a floor price, so a quote far below the band means the savings came from somewhere. Comparing itemised quotes from several verified vendors, which is how booking works in the tamam app, makes the outlier obvious rather than tempting.