🔥 Iridium vs Platinum Spark Plugs: Which One to Choose for Your Engine?

When it comes to ignition performance, choosing the right spark plug is crucial. This article compares iridium and platinum spark plugs in terms of durability, combustion quality, price, and suitability for different engines. Ideal for car enthusiasts and those interested in tuning or maintenance.

💡 Technical Differences Between Iridium and Platinum

Both materials are used for the central or ground electrode to optimize durability and ignition quality. Here’s what sets them apart:

🔹 Iridium

Melting point: ~2,450°C
Conductivity: Excellent
Durability: Up to 100,000 km
Electrode size: Very fine, offers a precise spark

🔹 Platinum

Melting point: ~1,768°C
Conductivity: Good
Durability: 60,000 to 80,000 km
Electrode size: Thicker than iridium, less precise but stable

⚙️ Advantages & Disadvantages

Criteria	Iridium	Platinum
Spark Precision	⭐⭐⭐⭐⭐	⭐⭐⭐
Lifespan	⭐⭐⭐⭐⭐	⭐⭐⭐
Price	Higher	Moderate
Performance Use	Highly recommended	Acceptable
Standard Daily Use	Excellent	Good

🔍 Which Spark Plug for Which Engine?

Iridium: Ideal for tuned or high-performance engines. Great for turbocharged engines and high thermal load situations.
Platinum: Perfect for original or naturally aspirated engines. Provides a good balance of price, longevity, and performance.

📚 FAQ – Frequently Asked Questions

🔹 Is Iridium always better than Platinum?

Technically yes, but the real question is: do you need it? For daily driving, platinum is more than enough.

🔹 Can I switch from platinum to iridium?

Yes, as long as the heat range and gap match the manufacturer’s recommendations.

🔹 Are double platinum plugs better?

They offer slightly better longevity, especially in coil-on-plug systems, but iridium still leads in precision and durability.

🛒 Need spark plugs for your engine? Check out our high-performance ignition parts catalog now in the shop!

Comments (0)

No comments at this moment

Only registered and logged customers can add comments

FAQ: The Most Frequently Asked Questions

How do I track my package?

As soon as the shipment is made, you will receive an email with a tracking link. You can also find this link in your customer account, under "My Orders." Delivery is tracked via Chronopost, Colissimo, DPD, or UPS.

How to contact Customer Service?

You can contact our customer service by email at https://strperformance.com/en/ or by phone at +33 01 34 67 70. We are available Monday to Friday, from 9:00 a.m. to 12:00 p.m. and from 2:00 p.m. to 5:00 p.m. Customer service is closed between 12:00 p.m. and 2:00 p.m. Response guaranteed within 24 to 48 hours (excluding weekends and public holidays).

Which countries do you deliver to?

STR Performance ships your orders all over the world: mainland France, French overseas departments and territories, Europe (Belgium, Switzerland, Spain, Germany, etc.) as well as internationally (Canada, Maghreb, overseas, etc.). Our shipping partners include Chronopost, Colissimo, DPD and UPS, depending on the country, weight and size of the package. Shipping costs are automatically calculated at the checkout stage based on your address. Each shipment is tracked online and secure. We deliver to your home, collection point or business depending on the options available in your area.

What are the shipping times?

Shipping times at STR Performance depend on product availability and delivery destination. ✅ Products in stock : dispatch within 24 to 48 working hours after payment validation (excluding weekends and public holidays). 🔄 Products being restocked or personalized : an additional delay may apply (specified on the product sheet or communicated by our customer service). Average delivery times after dispatch : 🇫🇷 Metropolitan France : 1 to 3 working days via Chronopost, Colissimo or DPD 🇪🇺 Europe (Belgium, Luxembourg, Germany, Spain, etc.) : 3 to 7 working days 🌍 DOM-TOM, Canada, Maghreb, and rest of the world : 5 to 12 working days depending on the area Each order benefits from online tracking : you will receive an email with a tracking number as soon as your package is picked up by the carrier. Important : Orders placed after 12 p.m. are generally processed the following business day. Delivery times may be longer during busy periods (sales, promotions, holidays, etc.).

How much are the shipping costs?

Shipping costs are calculated automatically at the checkout stage, based on the weight, volume of your package and your delivery area. We offer several carriers (Chronopost, Colissimo, DPD, UPS) with rates adapted for France, Europe, the French overseas departments and territories and internationally. The exact cost is displayed before payment, once your address has been entered.