Originally Posted by 4XLGator
I bought some Lucas fuel additive and put in my truck awhile back. It was an impulse buy and the only reading I did on the product was what was on the bottle, thus I had no previous notion that it would work. But I have to tell you, I am convinced it quieted my engine a little and improved mpg's some as well.
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My brother swears by Lucas in his 05 F250. I have tried it once and did not see any noticeable gains. But, only tried it once. Going to give MMO a try this coming weekend. Will be doing some towing...should be a good test.