I would like to know how long can I run Motorcraft SAE 5W-20 Synthetic Blend For 2018 Ford Explorer, but Note that here in my country Oman it's considered as severe usage just because of the temps in midday 55C (131 F) and in night 45C (113 F) with also dusty weather. My dealer told me to change it every 10,000KM (6200 Miles) but I had doubts because it's a Synthetic Blend not Fully synthetic and we have severe weather. Can someone clarify this looking at the circumstances?
Thanks,
Thanks,