[Pb highlander]

Toyota motor oil is manufactured by Mobil. The 1 quart black bottle will be clearly labled
"Genuine Toyota motor oil" Ask your parts department to show you what they are putting in your car. Toyota dealers are not bound by any contracts by TMC to use their oil. It;s not realy clear, but here is a pic of bottles Toyota motor oil, The shape of he bottles have changed since this picture. http://www.toyotaownersonline.com/parts-service/toyota_parts/motoroil.html

i like you to stand there and watch them open each black bottle and pour it in doing a oil change --- won't happen comes bulk from a barrel it's a blend not full synthetic.