One 300 ml can of Liqui Moly hydraulic tappet additive is sufficient for up to 6 liters (1.5 gal.) motor oil. The product can be added at any time. After adding, run the engine until warm. For a lasting effect, Liqui Moly Hydraulic tappet additive must be added after each oil change.
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Mason Phillips - 2024-03-03
Lightning-fast shipping and the product quality is second to none. You really get more than what you pay for. Plus, customer service is outstanding.