1991 Mazda 626 spark plugs

1991 MAZDA 626
140,000 MILES
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ZAMORA
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Spark plugs have oil on them valve gasket is leaking .One mechanic says to put new spark plugs and fix the oil leak $240.00 . The other mechanic said valve sealants and fix leak $700.00 who is right ? car is not smoking
Oct 15, 2013 at 5:06 PM
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MADMIKE1735
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sounds like the spark plug tube seals are leaking.... these would be included with a valvecover gasket set, and if left alone, could cause an engine misfire..... keep in mind, if the spark plug wires should be replaced also, as they will be oil logged...
Oct 15, 2013 at 7:22 PM