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Opti-Lube XL Xtreme Lubricant is the ultimate lubricity additive with revolutionary deposit control. This product continues to increase the lubricity of diesel fuel up to a mix ratio of 512:1. Proven Xtreme lubrication is also followed up with water and deposit control to keep your fuel system safe and functioning at its full efficiency.
One quart bottle. Use 1/4 to 1/2 oz per gallon of fuel.