Costco Analytics

Kirkland Motor Oil Purchase Limit & Margin Calculator

Rationing Controls
2 units
1 unit 5 units 10 units (No Cap)
+18.0%
+14.5%
1,200 units
450 units/wk
Item Profile: Kirkland Signature 5W-30 Full Synthetic Motor Oil (5-Quart, 2-Pack bundle equivalent). Baseline member hoarding rate is modeled at 8 units/week during bulk panics.
Supply Chain Resilience & Burn-Down Trajectory Rationed - Inventory Protected
Stockout Timeline 24.5 days of inventory
Adjusted Margin 22.4% Gross Retail
Ration Efficiency 78.5% Protection Score
Operating Status Rationed - Inventory Protected +31% Days Added
Enforcing a 2-unit cap curtails bulk commercial reselling, extending warehouse stockout from 18.7 days to 24.5 days while capturing a 22.4% retail margin under a +18.0% retail hike vs +14.5% wholesale cost jump.
Metric Attribute Unconstrained Scenario Enforced Ration Policy Variance / Impact
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