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The 5 Best Engine Additives

May 2024

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The Score indicates the overall value of the product.
The rating is based on multiple factors:
The 3 metrics ‐ Opinions, Popularity and Quality,
and other indicators such as: Relative Price, Brand,
Reputation and more.
Popularity

Based on thousands of discussions

Opinions

Based on customer reviews

Quality

Based on Expert reviews and articles

Various Indicators

such as Brand reputation and relative price

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$17
$29+
Rank
Manufacturer
Product Name
Score
1
Best Engine Additives - BestLine Racing Diamond Nano-Lube Engine Oil Treatment Review DNL
9 . 7
2
Best Engine Additives - LIQUI MOLY Oil Additive Cera Tec 3721 Ceramic Review Liqui Moly
9 . 4
3
Best Engine Additives - Bar's Leaks Oil Seal Engine Oil Burning Review Bar's Leaks
9 . 3
4
Best Engine Additives - Prolong Super Lubricants PSL11000 Engine Treatment - 12 Review Prolong Super Lubricants
8 . 9
5
Best Engine Additives - Motorkote MK-HL32-06 Heavy Duty Hyper Lubricant Engine Treatment Review Motorkote
8 . 7
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