Our rankings are generated through the algorithmic analysis of thousands of customer reviews about products, brands, merchant customer service levels, popularity trends, and more. We use advanced technology, including AI, to help process and organize this information at scale, supporting our analysis with greater speed and consistency. The rankings reflect our opinion and should be a good starting point for shopping.
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10 Best transmission additives of 2026
Save up to 29% off
Best Choice1
Hot Shot's Secret9.7Exceptional
Hot Shot's Secret Shift Restore Transmission Additive, 16 oz
27% Off-
Friction Reduction:Reduces coefficient of friction
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Type:Automatic Transmission Additive
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Temperature Reduction:Reduces operating temperatures
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Compatibility:All automatic & CVT transmissions
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Bottle Size:16 fl oz
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Value for Money2
Lucas Oil9.4Excellent
Lucas Oil Transmission Fix,Bottle,Red,12 oz. 10009 - 1 Each
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3
Lubegard9.2Excellent
Lubegard 19610 Instant Shudder Fix
29% Off-
is discontinued by manufacturer:‎No
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product dimensions:‎5.5 x 1.2 x 1 inches
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manufacturer part number:‎19610
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item weight:‎2.08 ounces
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customer reviews:4.6 4.6 out of 5 stars 5,385 ratings 4.6 out of 5 stars
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4
Lubegard9.1Excellent
Lubegard 60902 Automatic Transmission Fluid Protectant, 10 oz
29% Off
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5
Lubegard9.0Excellent
Lubegard 63010 Platinum Automatic Transmission Fluid Protectant, 10 oz.
23% Off-
product dimensions: 7.2 x 2.94 x 1.87 inches
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recommended uses for product: Anti-Friction
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package information: Bottle
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item weight: 10 ounces
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item model number: 63010
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6
Hot Shot's Secret8.8Very Good
Hot Shot's Secret Shift Restore Transmission Additive, 32 oz
12% Off
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7
Lucas Oil8.5Good
Lucas Oil 10441 Automatic Transmission Fluid Conditioner - 20 Ounce
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8
XADO8.4Good
XADO EX120 Automatic Transmission Fix - Treatment for CVT & Other Gearbox Types | ATF Additive & Protectant - Reduces Sticking, Shudder and Slipping
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is discontinued by manufacturer:‎No
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product dimensions:N/A
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manufacturer part number:‎XA 10031
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item weight:‎0.353 ounces
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customer reviews:4.2 4.2 out of 5 stars 1,812 ratings 4.2 out of 5 stars
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9
Lubegard8.3Good
Lubegard 19610 Dr. Tranny Instant Shudder Fixx 2 Ounce 2 Pack
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is discontinued by manufacturer: No
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product dimensions:N/A
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manufacturer part number: 19610
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item weight: 4.5 ounces
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customer reviews:4.5 4.5 out of 5 stars 2,616 ratings 4.5 out of 5 stars
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10
Lubegard8.2Good
Lubegard Instant Shudder Fixx (2 oz.) - 12 Pack
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