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10 Best Engine Oil Additives

3,750 reviews scanned
Rank Product Name Score
1 XL Nanolube Engine Oil Additive and Nano Oil Engine Treatment transforms your Motor XL Nanolube Engine Oil Additive and Nano Oil Engine Treatment transforms your Motor By XL Nanolube
9.9
Score
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2 BestLine 853796001049 Premium Synthetic Engine Treatment for Gasoline Engines - 16 oz BestLine 853796001049 Premium Synthetic Engine Treatment for Gasoline Engines - 16 oz By BestLine Lubricants
9.5
Score
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3 Rislone Nano Prime Synthetic Engine & Oil Additive, 1 Pack Rislone Nano Prime Synthetic Engine & Oil Additive, 1 Pack By Rislone
9.2
Score
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4 AR9100-16oz for All Vehicles- Powerstroke Cold Starts, an Injector Stiction Solution AR9100-16oz for All Vehicles- Powerstroke Cold Starts, an Injector Stiction Solution By Archoil
9.0
Score
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5 New - BestLine High Performance Engine Treatment New - BestLine High Performance Engine Treatment By BestLine Lubricants
8.6
Score
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6 Bg MOA Part # 110 Engine Oil Supplement Bg MOA Part # 110 Engine Oil Supplement By BG
8.3
Score
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7 Lucas 10001 Heavy Duty Oil Stabilizer - 32 oz Lucas 10001 Heavy Duty Oil Stabilizer - 32 oz By Lucas Oil
8.1
Score
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8 Prolong Super Lubricants PSL11000 Engine Treatment - 12 oz Prolong Super Lubricants PSL11000 Engine Treatment - 12 oz By Prolong Super Lubricants
7.8
Score
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9 Slick 50 (750002) Recharged High Mileage Engine Treatment - 15 oz Slick 50 (750002) Recharged High Mileage Engine Treatment - 15 oz By Slick 50
7.6
Score
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10 Lucas 10130 Synthetic Oil Stabilizer. Quart Lucas 10130 Synthetic Oil Stabilizer. Quart By Lucas
7.1
Score
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