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Fuel Additives

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  • NEW
    Marine Maintenance Essentials Bundle
    Marine Maintenance Essentials Bundle
    $76.54 $81.94
    Bundle and Save 10% in Cart*
  • Star Brite Star Tron Enzyme Gasoline Additive, 32 oz.
    Star Brite Star Tron Enzyme Gasoline Additive, 32 oz.
    $17.89 $19.99
    Save $2.10 ( 11% Off )
  • Lucas Oil Upper Cylinder Lube, 5.25 oz.
    Lucas Oil Upper Cylinder Lube, 5.25 oz.
    $3.99
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    Some manufacturers impose minimum advertised price restrictions. If we lower the price of an item to a certain level, we can only show that price in the cart. If you change your mind about the item, simply remove it from your cart. The savings are worth a few extra clicks.
  • Clearance
    Lucas Oil Safeguard Ethanol Fuel Conditioner, 16 oz.
    Lucas Oil Safeguard Ethanol Fuel Conditioner, 16 oz.
    $6.81 $9.99
    Save $3.18 ( 32% Off )
  • Gold Eagle ISO-HEET Premium Fuel Line Antifreeze, 12 oz.
    Gold Eagle ISO-HEET Premium Fuel Line Antifreeze, 12 oz.
    $1.97 $3.99
    Save $2.02 ( 51% Off )
  • Clearance
    Sta-Bil Diesel Fuel Additive, 32 oz.
    Sta-Bil Diesel Fuel Additive, 32 oz.
    $19.99 $24.99
    Save $5.00 ( 20% Off )
  • Clearance
    Quicksilver Quickstor Fuel Stabilizer, 12 oz.
    Quicksilver Quickstor Fuel Stabilizer, 12 oz.
    $9.61 $13.99
    Save $4.38 ( 31% Off )
  • Clearance
    Star Tron Fuel Tank Cleaner, 64 oz.
    Star Tron Fuel Tank Cleaner, 64 oz.
    $33.24 $34.99
    Save $1.75 ( 5% Off )
  • Clearance
    Honda Marine Fuel Stabilizer And Corrosion Inhibitor, 8 oz.
    Honda Marine Fuel Stabilizer And Corrosion Inhibitor, 8 oz.
    $4.56 $7.99
    Save $3.43 ( 43% Off )
  • Star Tron Fuel Treatment, 8 oz.
    Star Tron Fuel Treatment, 8 oz.
    $12.34 $12.99
    Save $0.65 ( 5% Off )
  • Quicksilver Quickleen Engine And Fuel System Cleaner, 12 oz.
    Quicksilver Quickleen Engine And Fuel System Cleaner, 12 oz.
    SALE! (was $13.99)
    Non-Member $12.49
    Good Sam Member $9.99
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  • Star Brite Star Tron Enzyme Gasoline Additive, 8 oz.
    Star Brite Star Tron Enzyme Gasoline Additive, 8 oz.
    $6.19 $6.99
    Save $0.80 ( 11% Off )
  • Clearance
    Sta-Bil Fuel Stabilizer, 128 oz.
    Sta-Bil Fuel Stabilizer, 128 oz.
    $41.81 $59.99
    Save $18.18 ( 30% Off )
  • Sierra Ethanol Fuel Treatment And Stabilizer Display, Sierra Part #18-9493
    Sierra Ethanol Fuel Treatment And Stabilizer Display, Sierra Part #18-9493
    $97.09 $107.99
    Save $10.90 ( 10% Off )
  • Lucas Oil Marine Fuel Treatment, Quart
    Lucas Oil Marine Fuel Treatment, Quart
    $17.09 $17.99
    Save $0.90 ( 5% Off )
  • Lucas Oil Marine Fuel Treatment, 5 oz.
    Lucas Oil Marine Fuel Treatment, 5 oz.
    $5.88 $8.99
    Save $3.11 ( 35% Off )
  • STA-BIL 360 Marine Ethanol Fuel Treatment 32 oz.
    STA-BIL 360 Marine Ethanol Fuel Treatment 32 oz.
    $19.99 $24.99
    Save $5.00 ( 20% Off )
    Compare at $27.99
  • Lucas Oil Marine Fuel Treatment, Gallon
    Lucas Oil Marine Fuel Treatment, Gallon
    $56.99 $59.99
    Save $3.00 ( 5% Off )
  • Star Brite Star Tron Gasoline Additive, 16 oz.
    Star Brite Star Tron Gasoline Additive, 16 oz.
    $15.97 $19.99
    Save $4.02 ( 20% Off )