Choosing the Right Spark Plug -- It Really Does Make a Difference

Planning to install new spark plugs in your vehicle? There are lots of choices in spark plug design these days -- plugs with one, two, three, or even four ground electrodes. There are also exotic materials like platinum, yttrium, and iridium for center and ground electrodes. So how to choose?

Bosch, one of the largest suppliers of spark plugs as original equipment for auto manufacturers as well as in the aftermarket, offers some cogent thoughts on selecting the best plug for your vehicle and how you use it.

• Avoid downgrading from the original plugs
• Take advantage of the latest technology
• Install plugs that meet your specific needs
• What's your engine's condition?
• Are you rigorous in having maintenance performed?
• The bottom line?

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