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Pre-Trip Quiz
Platinum tipped spark plugs may last for as many as 100,000 miles. The answer is TRUE! New spark plug technology, along with improved engine design and lead-free fuel, have greatly extended spark plug life. However, the active word in question #3 is "may". Fine print in most owner’s manuals indicate circumstances where more frequent engine service is recommended. (Tests show that a 4 cylinder car with just one spark plug misfiring takes 54% more time than normal to accelerate from 25 mph to 55 mph.)
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