My 2004 Mercury Grand Marquis is one of the most trouble-free cars I've ever owned, but the 4.6 V-8 is a notoriously loud running engine and at 30,000 miles, it developed a minor high speed miss. I tried a few bottles of Lucas Fuel Treatment with great results. Not only did I lose the high speed miss, the engine runs much quieter and gas mileage improved noticeably. I use a bottle with every fill-up. I buy it by the gallon and refill the 5.5 oz. bottles so the cost per treatment works out to be about $1.00 each.

My wife's 1998 Chevy Venture Van with 150,000 miles developed a leaky tranny. I installed a bottle of Lucas Transmission Treatment and the leak completely stopped in 2-3 weeks.

The tranny made a ringing noise when climbing hills from day one that the dealership told me was harmless and to ignore. Following the treatment, I noticed over a period of several months that the noise gradually decreased and eventually stopped.

The Venture also get a bottle of Lucas Fuel Treatment with every fill-up. The engine has always been trouble free so we were looking for better fuel economy. We saw a big difference in gas mpg, especially on the open road. The big van always did get about 26-27 mpg but our last trip was 32 mpg. Impressive?

One day, we might consider $4.00 a gallon of gas a "bargain" so do anything you can to boost your mpg. Thanks Lucas.