[This review was collected as part of a promotion.] I've used Pennzoil Conventional Oil in most of my vehicles for years. No better conventional oil exists. The only vehicles that didn't use Pennzoil Conventional in my garage were the ones that I converted to full synthetic.

[This review was collected as part of a promotion.] We've used this oil in the past in our older cars, we've also used the high mileage oil for our higher mileage vehicles. Usually for the price it's a good deal. I know a lot of delivery drivers use this oil because of the number of miles the put on and the age and mileage of their vehicles. Haven't heard any complaints.

[This review was collected as part of a promotion.] My van has over 235,000 miles and this is the only oil I have ever used....however I just saw the bottle to the left of this one that says high milage....maybe time to switch oil....not the brand...the product....

Dont use anything but Pennzoil, I drive from texas to California every 6 months and pennzoil has been my go to. Works best in my car and even helps on my gas mileage. Will never use a different brand and will pass that down to my kids. Thank you for the amazing product.

[This review was collected as part of a promotion.] Its the only oil I ever used and ever will use. My father taught me the importance of choosing the right oil when I was young. He always used pennzoil so that's what I use to this day. I recommend this oil to everyone who has a oil change question.

I used 10-30 w.in All Vehicles that I've Owned. I Had a Jeep Cherokee with a 4 liter inline6 cylinder in it and Put 335.000 miles on it before it got in a Crash in a IceStorm.A Freind Bought the Motor and Put it in His Jeep .He has put over100.000 more miles on it and last check she is still going. And We Have Been Rough on it at Times. Bottom Line Best Oil I've Ever Used.

[This review was collected as part of a promotion.] I have used this brand of oil for many many years.I am a mechanical for over 40 years, and in all my car it is used, I talked many of my boxes to us pennoil, it keeps the engines clean helps them to last longer.

[This review was collected as part of a promotion.] I used the 10W 30 in my auto with wonderful results. Sold the vehicle with 366 thousand and still running strong when I saw my old car years later with 422 thousand on it then. Change you're oil and good things happen.

[This review was collected as part of a promotion.] Scott Espie PENNZOIL HAS ALWAYS BEEN THE OIL IVE ALWAYS USED EVER SENCE MY 1968 CHEVELLE WHEN I WAS A TEENAGER, NOW ITS A 2013 NISSAN SENTRA BUT IT STILL GETS THE SAME MOTOR OIL THAT HAS ALWAYS WORKED Pennzoil TOOLBOX IS SOMETHING ILL PRAY THAT I CAN WIN

I've been using 5W-30 Pennzoil on my 2010 Nissan Titan Pro-4x since I bought it new. I change it every 7,500 miles, and have had no issues. I've sent used motor oil for analysis. The report shows everything is great with the oil. That I am replacing it at the right intervals, and there is nothing in the analysis to suggest something is wrong internally with the engine. My truck has 78,000 miles on it, and I haven't had any work done on the engine so far.