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How to measure oil additive quantity
by Alex
Expert answer:
Quick answer
Follow the product’s ratio, typically stated as “one bottle per X quarts of oil.” Check your engine’s oil capacity, do simple math, and measure carefully—avoid going above recommended limits.
Detailed answer
Most additive labels read something like “Treats up to 5 quarts” or “Use 1 ounce per quart.” If your crankcase holds 6 quarts, you may need more than one bottle or partial bottles. Overdosing risks foaming or viscosity changes; underdosing might reduce effectiveness. Use a measuring cup if the additive lacks a clear built-in measure. Keep track of how much you’ve added over the interval, especially if topping up mid-cycle. Getting it right is essential for stable performance.