If my cold start clatter continues im going to try changing the filter to a wixXP. I know it aint no RP 20-820 but i got to try somthing.
The fellas that have the brief (1-3 seconds) cold start valve train noise..... what filters were you using when it happened?
Just thinking is all.
I switched from the fram ultra synthetic so long ago i dont honestly remember if it did it with that filter or not. But a few bad experiences with that filter made me switch.
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IME there are two types of cold start clatter. One, to me, is standard lifter bleed down. Its a slight top end tick that goes away after 10-20 seconds or so.
The other is a God awful clacking that makes you think something is bouncing around inside. In my case it only occurs for 2 or 3 seconds but it feels longer than that because it sounds so horrible. I can recreate it at will, so I just avoid the situation.
I have had both types of clatter with stock, small RP and large RP filters, factory fill, pup and pyb also made no difference.
Redline with large RP has quieted or even eliminated the first type, I have not tried to recreate the second type since putting RL in.
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