I took my mom’s car to a Speed Lube ( a local oil change facility) here in my town. They use to feature Quaker State and Pennzoil and changed to Mobil Clean. The pumps inside the garage say “Mobil Clean”..not Mobil Clean 5000. Is it safe to presume this is the 5000 series of their conventional oil or is it the old stuff they use to bottle and sell on store shelves.???