1991 Toyota 4Runner Spark Plugs

1991 TOYOTA 4RUNNER
124,000 MILES • 4 CYL • 4WD • MANUAL
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JBOLSON
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  • 1 POST
Why do spark plugs get a heavy white residue on them?
Jan 28, 2009 at 2:48 PM
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RASMATAZ
  • CERTIFIED EXPERT
  • 75,992 POSTS
Improper oil or fuel additives and poor oil control
Jan 28, 2009 at 3:19 PM