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Safeguard your engine against the potentially destructive results of detonation with Maxima Hi-Test. One ounce per gallon effectively raises octane approximately 2 to 4 points. Concentrated octane booster Organic, contains no metal(lead, manganese or phosphorus) compounds Mixes with gasoline, alcohol and nitro mixtures Suppresses detonation and preignition Eliminates pinging and knocking from low quality gasolines
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🇺🇸 Ship from USA · On Agora since 2026
$9.99