big difference between Castrol HM to Pennzoil HM

[Mr_Accord]

just wondering if there is a big difference in quality between Castrol High Mileage conventional compared to Pennzoil High Mileage conventional. I have been using Castrol High Mileage in my 92 accord for a few years now but I'm going to need to change my oil soon and there is a good sale on right now for pennzoil but I've never used that brand only castrol

thanks

 

[rg200amp]

Both a very good oils.
Personally(out of the two) I would use the Pennzoil High Mileage.

You may want to check out Maxlife aswell.

 

[VK56VD]

Based on what I've read, Castrol High Mileage is a bit thicker; a good thing if your car consumes oil since this may cut consumption a bit.