Engine oil PENNZOIL or Mannol

Have an 07 Silverado bought new first oil change switched over to Mobil one used that until one of the hurricanes hit Louisiana and started having a problem getting it so switched over to Pennzoil full synthetic. Truck has 368000 on it and seems to be still going strong so I’d say it’s your choice.

I use Pennzoil Platinum. Is it the best? Who knows, but I’ve been using it for years on several vehicles and never had an issue.

Also been using Mannol. Do 6k oil changes though. Made chain noise on start up. Swapped back to mannol noise gone.

I've used Mannol for a few years, it's dirt cheap here in the UK and I've never had any issues with it.

Using Mannol since years in Mercedes Diesel and gas engines , also in a BMW Boxer.

I’m using Pennzoil Ultra Platinum, really helped how effortless my acceleration is and gas mileage.

Onto my third or fourth big bottle of Mannol in a Toyota 2.2d4d and it has never missed a beat.

I tried to use the Pennzoil high mileage full synthetic the most, but if I didn't have the bit extra for it, I'd get Walmarts generic full synthetic high milage. I always used a Fram full synthetic filter too, they were the only ones around me that were better quality and decent price for the time. Mine got to 200k no problems!

Started running penzoil platinum in my mazdaspeed due to the great UOAs it got on DI motors, and just now run that in all my shit to simplify my life. Only have to keep one oil around that way.

On the Gen 2 Prius that have been several reports of Pennzoil Platinum full synthetic consuming oil much quicker, me included.