WEVTU reported Jan. 1, 1999, Robert Bosch GmbH's claims that its new Platinum +4 spark plugs, with a gap of 0.062 in., can replace standard plugs gapped 0.028 in. in a specific vehicle application and that WEVTU would verify this claim. A set of the P+4 plugs were installed in a 1996 2L Volkswagen AG Golf, operated primarily in St. Paul, MN. A VW technical representative at its U.S. headquarters in Detroit had earlier said this model has relatively low ignition voltage, and a dealer ...

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