Been driving my 1992 saturn LS with close to 500,000 miles on its original motor, 80 miles to work daily round trip. I have used Lucas power steering stop leak, oil stabilizer and I also use the fuel treatment regularly in this car. When people ask how come I drive a car with this many miles on it, I reply "because I can!" Then I tell them about the magic of Lucas products. Thanks for making products that actually do what they claim to do. A devoted Lucas fan.