Platinum vs. Iridium Spark Plugs - Which is More Valuable for Recycling?

Understanding the Differences

When recycling spark plugs, knowing which types contain the most valuable metals maximizes your returns. This comparison examines platinum and iridium plugs.

Metal Content Breakdown

• Platinum spark plugs:
• Average 0.2-0.3 grams platinum per plug
• Wider electrode surface area
• Common in mainstream vehicles 2000-2015
• Iridium spark plugs:
• Average 0.1-0.15 grams iridium per plug
• Needle-point electrode design
• Dominant in newer vehicles (2015+)

Best Sources for Each Type

• Platinum plugs: Older luxury sedans, trucks
• Iridium plugs: Hybrid vehicles, German imports

Maximize your recycling profits by properly identifying and separating these plug types before selling.

Article 8: Step-by-Step Guide to Collecting Spark Plugs for Recycling

Building a Profitable Collection SystemFollow this methodical approach to gather spark plugs efficiently for maximum recycling returns.

Phase 1: Source Identification

• Primary sources:
• Auto repair shops (especially European specialists)
• Fleet maintenance facilities
• Junkyards and salvage operations
• Secondary sources:
• Farm equipment repair
• Marine engine services

• Small engine repair shops

  

Phase 2: Collection Setup

• Provide labeled bins for shops:
• Red: Platinum plugs
• Blue: Iridium plugs
• Green: Standard plugs (low value)
• Offer collection service every 30-60 days

Phase 3: Sorting Protocol

• First-level sort: Separate by visible electrode type
• Second-level sort: Verify using magnet test (precious metal electrodes are non-magnetic)
• Third-level sort: Check manufacturer markings

Phase 4: Storage Best Practices

• Keep different metal types separated

Professional Tip

Establish long-term partnerships with 5-10 local shops to create a steady supply stream. We offer collection bin systems and scheduled pickups for business clients.