Been using this in my 1995 GMC Sonona Pick Up. It's got 350,000 miles and still running strong. I change the oil every 5000 miles. Won't use anything else but Penzoil!!

I do a 5,000 mile oil change on my 2010 Toyota Highlander. I have about 70k each time its changed I ask the tech how it looks. It is always still golden in color.

I started with Pennzoil products on my first car in 1965. I have used Pennzoil in all my cars and all of my outdoor equipment. The last car I traded had 237K miles, car before 230K, car before 347K with no lubrication problems. Great product.

My dad used Pennzoil forever and I was taught at a early age to always use Pennzoil. Our family has never had a engine failure and my 1993 Ford Ranger has always had Pennzoil when the oil was changed and it has over 300,000 miles on it and counting!

My van has made it to over 350, 000 miles and still running good I believe its because I only use pennzoil thank you pennzoil for making a wonderful product I swear by it whole heartedly

We only use Pensoil in our vehicles. They run better and longer. Our last vehicle had 286,756 miles on it & we only used Pensoil in it. Two vehicles now, and Pensoil is all we use. Thank you Pensoil

[This review was collected as part of a promotion.] I've been using Penzoil for 33 years. It's the best for keeping engines clean and performing at their best.

Have had this in ALL my cars, kids cars and anyone in the family that I service the cars. Just had the top end of my 2002 blaze off for a intake gasket with 170k and the inside was clean as new!

[This review was collected as part of a promotion.] I remember my dad sold me my first car a 72 Montecarlo first thing I wanted to do was an oil change I got the best filter I knew of at the time and 6 quarts of pennzoil conventionAL and was quite proud of the job I did!

[This review was collected as part of a promotion.] I have always used Pennzoil Conventional oil in my vehicles. I have also NEVER had any issues. All of them were high mileage, one was 275,000 before I wrecked it. My current car has over 100,000 and is running great!