Been using Penn oil for 30 years...no problems with it.

Only motor oil I will use in my car. Best brand out there

Great brand, had never let me down before. I trust it 100%

I use this oil in all of my vehicles and yard equipment. Works great.

I bought this a couple weeks ago and it is a great product and works great!

I use 5w30 in my car have never had a problem...perfect

Always used it,never no problems,keeps my vehicles running!!

i have been running pennzoil in my mercruiser engine for years and never a problem.

This goes in my mustang every 3000 miles. And wouldnt trust anything else in it.

Change oil every three thousand miles with usi g it