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promote longevity, they also allow for improved performance. Because, platinum resists erosion, it allows the use of a narrowed firing electrode.
A variation on what is known as “fine wine” spark plug design, the double platinum plug’s smaller tip won’t block the growth of flame the way thicker electrodes do. And the faster the flame created by the firing of the spark plug can be spread, the better the engine can perform.
So, What's A Tune-Up?
The definition of a tune-up has been evolving as cars have gotten more sophisticated. At one time, a tune-up included setting idle speed, ignition timing and valve lash, which are all set automatically on many modern cars. Most modern engines don’t use ignition distributors any more, so the distributor cap and rotor are long goneHowever,
even with these changes, this does not mean that your engine should be neglected for its first 100,000 miles.
Before that mileage interval is reached, the car will need to return to your dealer or favorite garage for several oil and oil filter changes, probably at least one PCV valve, and frequent underwood inspections.
Among the items vour owner’s manual
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