The Subaru SVX World Network - Best spark plug today????

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dromano

06-14-2011 11:28 AM

Best spark plug today????

What is the best plug being installed today?

I have Bosch +4's, still get 21-22 mpg combined city/hwy. This in a 92 @124K+ miles, 20 years old in October.:eek:

Are the iridium plugs the top choice?

TIA

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