Panda said:
A very wise man who's owned many vehicles swears by it. The oil hasn't failed me yet. I'll admit there have been times when I couldn't find the Delo and bought something else, but it's not wise to mix the oil, I've heard. It's just funny that these young men insisted that my engine would burn up with the Delo but the car has been running fine for 6 years now.
It is funny that somebody would suggest that your engine would "blow up" using motor oil that exceeds your requirements and then get offended when you disagree with them, which is probably why they work at a "lube shop" in the first place. In my opinion, it is a waste of money to have your oil changed at a "lube shop".