How Often Should Your Replace Your Toyota’s Spark Plugs?

Spark plugs are a crucial part of your car. Without them, your engine wouldn’t even start. The duration of a spark plug typically depends on the type of plug you’re using. It’s a good idea for every driver to also know the warning signs of a prematurely worn-out plug. That way, you can have any problematic plugs promptly repaired or replaced at your local Toyota dealership.

Copper Plugs

The most common type of plugs are made from copper, which is highly conductive but slightly softer and less durable than other types of material. Copper plugs tend to last about 20,000 miles, which is about one and a half years for most drivers. 

Platinum Plugs

A tougher and much longer-lasting metal used for plugs is platinum, which is slightly less conductive than copper but much more heat-resistant. Platinum plugs usually last for 60,000 miles or more, which will be about four or five years for most drivers.

Iridium Plugs

The strongest and best-performing plugs out there are made from iridium: a highly durable metal that allows for both excellent lifespan and conductivity. You can expect your iridium plugs to last for over 100,000 miles, which is usually more than seven years on the road. 

Signs of a Prematurely Worn-Out Spark Plug

Sometimes heat damage, burned-out electrodes, cracked casing, incorrect installation, or fouling from carbon deposits can cause a spark plug to prematurely fail. If one or more of your plugs runs into trouble, the engine’s cylinders will start misfiring. This causes the engine to sputter and shudder alarmingly, especially when you’re driving more slowly or resting in idle. If the plugs are really struggling, a misfiring engine can even stall. 

When plugs begin to fail, you’ll also notice a drop in engine power. Acceleration will become sluggish, making it hard to find a quick burst of speed. Your gas mileage will also plummet as fuel is being burned less efficiently. Misfiring plugs also cause an excess of fuel to build up inside the combustion chambers. This excess fuel can leak into the exhaust system, where it might ignite or escape from the tailpipe in the form of black smoke. 

Have Each Spark Plug Inspected at Your Local Toyota Dealership

When you take your vehicle to your local dealership for routine servicing, the technician can remove and inspect the condition of each spark plug in turn. If you’re already experiencing misfiring, the technician can diagnose and repair the underlying cause, which might originate from any number of engine components. 

Have every spark plug in your car’s engine checked, cleaned, repaired, or replaced today at Toyota of Kingsport. We’re an award-winning family-owned dealership offering top-notch cars and customer service to everyone who steps foot through our doors. 

Posted in Kingsport Toyota Service, Toyota of Kingsport Service | No Comments »