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  1. 1

    Question Lucas in a 7.3

    I have a 99 F-250 Super Duty, 7.3L with 423K on it. I change oil at 5k. Usually leak/use about 4 to 5 quarts between changes. How do feel about Lucas oil stabilizer. And how much should I use. I've heard about 1 gal to each change makes a big difference on oil useage and leakage. All...
  2. 1

    Question Truck Down, Need Help!

    I have a 99 F-250, 7.3L. Started normal this morning. Got on highway, hit third gear and the engine quit like you turned it off. Attempted to restart, turns over fine but won't hit a lick. Also when you turn the key on the (wait to start) light does not come on. I had the CPS replaced about...
  3. 1

    Seafoam

    I put two cans of seaform in the diesel at every oil change (5,000 miles) and it seems to work great. Has anyone used it in the oil? If so, how did it perform? My 99 F-250 has 390k on it. Just looking for ways to improve.
  4. 1

    Newbie New with trouble

    I have a 99 F-250 with a 7.3 and 286k. I've had it for three years and it has and still runs perfect. It has averaged about 19 mpg until recently, when it suddenly dropped to about 14 mpg. Smell like it's running a little rich. Does anyone have any suggestions?

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