I put it in my oil reservoir every 6000 miles I like the oil because it doesn't break down. My truck runs smooth.

I have used Castrol name brand oil for years. Its like a family tradition. I don't think we have or will ever used a different brand.

Other oils seems to not work in my car as well. This one is great! My car even stopped making as much noise. Seems to last longer as well.

Great oil brand. My dad always used this oil and I have continued to also. Great brand and not to expensive.

I buy this for my 2007 Toyota Camry and have no issues. It's sometimes out of stock at certain big box stores but my car runs great.

This is the only type of oil that I will use in my car. It's high quality and makes my car run smoother

I've us d Castrol oil on my vehicles for years. It holds up well with all the miles I put on my SUV.

My vehicle was leaking oil I used this to replace the oil that leaked out. I was very pleased with this choice.

We buy this for my high mileage car and it does the job.

Reasonably priced and does the job