I had a 1991 Izuzu p/u truck and had rear main seal leaking and it was going to cause me $1200.00 to repair it. My cousin told me to use Lucas oil. He also advised me to use 2 qt. with an oil change. So I changed my oil and added 2qt. of lucas oil and it stop the leak. So I kept using the oil and made it to 252,000 miles on the truck. I got another truck. I saw my old Izuzu truck last week and it is still runing well. I also use it in my wife's car. She has a Chevy Lumana. She has 172,000 miles and it still runs well. I want to thank you for a good product. And I will tell everyone about it.

Thanks again,

Donald Richard