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10 Best engine flushes of 2026

Explore top picks
  • Best Choice

    1

    Liquimoly 2037 Pro-Line Engine Flush, 500 ml, 6 Pack
    Liqui Moly
    9.8
    Exceptional

    Liquimoly 2037 Pro-Line Engine Flush, 500 ml, 6 Pack

    • is discontinued by manufacturer: No
    • manufacturer part number: 2037
    • item weight: 3.04 pounds
    • customer reviews:4.6 4.6 out of 5 stars 143 ratings 4.6 out of 5 stars
    • package dimensions: 8.39 x 8.27 x 5.51 inches
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  • Value for Money

    2

    TRIAX Pro Engine Flush Oil-Based Deep Clean Motor Oil Flush Removes Sludge & Carbon | Non-Solvent | Safe for Engine, Seals, Injectors | Professional Shop Grade (16 oz - Pack of 4)
    Triax
    9.6
    Exceptional

    TRIAX Pro Engine Flush Oil-Based Deep Clean Motor Oil Flush Removes Sludge & Carbon | Non-Solvent | Safe for Engine, Seals, Injectors | Professional Shop Grade (16 oz - Pack of 4)

  • 3

    Liqui Moly Pro-Line Engine Flush | 500 ml | Oil additive | SKU: 2037
    Liqui Moly
    9.4
    Excellent

    Liqui Moly Pro-Line Engine Flush | 500 ml | Oil additive | SKU: 2037

    • is discontinued by manufacturer: No
    • manufacturer part number: 2037
    • item weight: 15.2 ounces
    • customer reviews:4.7 4.7 out of 5 stars 7,542 ratings 4.7 out of 5 stars
    • package dimensions:N/A

  • 4

    Liquii Moly Pro-Line Engine Flush (500 ML) - 2 PACK
    MAATSEN
    9.2
    Excellent

    Liquii Moly Pro-Line Engine Flush (500 ML) - 2 PACK

    • manufacturer part number: 2427
    • country of origin: Germany
    • item weight: 2.18 pounds
    • customer reviews:5.0 5.0 out of 5 stars 2 ratings 5.0 out of 5 stars
    • package dimensions: 7.99 x 5.87 x 3.15 inches

  • 5

    Motor Flush 5 Min 32 fl oz (3 Pack)
    Gunk
    9.1
    Excellent

    Motor Flush 5 Min 32 fl oz (3 Pack)

    • is discontinued by manufacturer:No
    • product dimensions:9 x 4.3 x 8.9 inches 2 Pounds
    • asin:B01G00493M
    • date first available:May 8, 2016
    • item model number:5824055256
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  • 6

    XADO Engine Oil System Cleaner with Anti-Carbon Effect - Removes Contamination & Engine Sludge - ATOMEX Total Flush Revitalizant (Bottle, 250ml)
    XADO
    8.8
    Very Good

    XADO Engine Oil System Cleaner with Anti-Carbon Effect - Removes Contamination & Engine Sludge - ATOMEX Total Flush Revitalizant (Bottle, 250ml)

    • is discontinued by manufacturer: No
    • manufacturer part number: XA 40613
    • item weight: 10.9 ounces
    • customer reviews:4.4 4.4 out of 5 stars 437 ratings 4.4 out of 5 stars
    • package dimensions: 7.4 x 4.88 x 2.48 inches

  • 7

    LIQUI MOLY Oil Additive Cera Tec 20002 Ceramic Wear & Tear Protection for Petrol & Diesel Engines Smoother Engine Performance, Less Friction & Lower Fuel Consumption 300 ml
    Liqui Moly
    8.7
    Very Good

    LIQUI MOLY Oil Additive Cera Tec 20002 Ceramic Wear & Tear Protection for Petrol & Diesel Engines Smoother Engine Performance, Less Friction & Lower Fuel Consumption 300 ml

    • product dimensions: 2.5 x 1 x 3 inches
    • batteries: 1 Unknown batteries required.
    • item weight: 10.6 ounces
    • oem part number: 20002
    • item model number: 3721

  • 8

    Engine cleaning kit, Restore engine power kit, Internal Engine Cleaning, Engine flush, Fuel Injectors Cleaner, Oil Additive Nano, gasoline treatment, engine oil additive, engine protection kit
    MotorPower Care
    8.6
    Very Good

    Engine cleaning kit, Restore engine power kit, Internal Engine Cleaning, Engine flush, Fuel Injectors Cleaner, Oil Additive Nano, gasoline treatment, engine oil additive, engine protection kit

  • 9

    Bg Products MOA & EPR Motor Oil Additive Lubrication Supplement Engine Restore
    BG
    8.5
    Good

    Bg Products MOA & EPR Motor Oil Additive Lubrication Supplement Engine Restore

    • manufacturer part number: 755897083673
    • country of origin:N/A
    • item weight: 10.9 ounces
    • customer reviews:4.7 4.7 out of 5 stars 753 ratings 4.7 out of 5 stars
    • package dimensions:N/A

  • 10

    3 cans of BG EPR Engine Performance Restoration
    BG
    8.4
    Good

    3 cans of BG EPR Engine Performance Restoration

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