Jim uses Lucas Heavy Duty Oil Stabilizer in 2004 GMC SIERRA

I just used your Oil stabilizer and Fuel System Cleaner for the first time and all I can say is WOW. My truck only has 29000 miles on it and runs great. I was gettting about 320 miles out of a tank of fuel, since using your products it jumped to 340 miles without any change in my driving routine. What a great product!