Subject	valve noise solved
Posted by	Dean-o on May 18, 2018 at 4:18 PM
	This message has been viewed 376 times.
Message	My 1994 300ZX TT, at 115,000, was developing increasing valve noise. Consulted Concept Z in Phoenix, and trusted local mechanic, and then blended their advice. 1. Half a can of Sea Foam into oil, half into gas, drive 200 miles with 3000 RPMs a good part of the time, within a couple of days. 2. Drain or suck 1 quart of oil out. 3. Add 1 quart of Dexron ATF, drive 8-10 miles. 4. Drain all oil, remove filter. 5. Fill with Castrol 10/30 (non-synthetic), new filter. 6. Listen with stethescope. Noise gone. Worked for me. If not better, repeat. Or, pull the top off and spend some money. Your choice.
Follow Ups	valve noise solved - Dean-o 16:18:23 05/18/18 Nice!!! ;-) (n/m) - jzack 18:38:01 05/18/18 I have noticed over the years our Z's love Castrol 10/30 (n/m) - MLPS300ZX 23:03:35 05/22/18 I changed my oil and put Castrol 10/30 conventional in - rightzedfred 07:48:11 05/24/18 I'd recommend a slightly thicker oil, especially over 100K - Polish 00:34:15 05/29/18 Have you always used Castrol? - Waco300zx(DFW) 14:05:05 05/30/18
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