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Old 08-27-2019, 12:35 PM
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Start-up clatter & rattle issue solved

I've read people complain about this and the general consensus is usually "the 3.6 clatters on startup - don't worry about it".

Well it really bugs me to think about parts rattling around without sufficient lubricant so I wanted to see if something could help.

I switched to Amazon Basic synthetic 5w-20 oil on my last oil change.
https://smile.amazon.com/gp/product/B07C5FF59T

Before you laugh, watch this:


Problem solved. I no longer get any rattle or clatter when starting the Jeep, even when its been sitting for a week.

Something to consider trying if you are bothered by the clatter like I was...

I only wish the switch to Redline MTL had solved my rough shifting problems as well...

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Old 08-27-2019, 12:39 PM   #2
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Give it a few weeks, it will come back.

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Old 08-27-2019, 12:46 PM
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Quote:
Originally Posted by Blastek View Post
Give it a few weeks, it will come back.
Really. Thats disappointing to hear. Why is that? Oil passages get clogged?
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Old 08-27-2019, 01:02 PM   #4
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I think the oil is initially more effective. I run synthetic and the startup clatter is definitely gone after changing the oil, but it comes back.
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Old 08-27-2019, 02:03 PM   #5
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Love Project Farm totally unbiased here is the video and how it went.
And I agree that I can easily tell when its time for an oil change just by the valve train noise.
Fresh clean oil quiet motor 2-3months in and you get the clatter.
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Old 08-27-2019, 04:48 PM   #6
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I switched from 5w-20 to 5w-30 Pennzoil Syn in my '14 based on some others views on here, and I can tell you I have no more start-up clatter since the change. Your results may vary, but it worked for me.
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Old 08-28-2019, 12:10 AM   #7
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Only couple hundred miles into Mobil 1 oil change and always got clatter if the Jeep sits for a day or two. I think I’m going to try the new rotella gas truck synthetic. Is there a “considered the best” oil filter for the 3.6? I typically just use OEM oil filters
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Old 08-28-2019, 12:49 PM
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Quote:
Originally Posted by JeepJeepBeepBeep View Post
Only couple hundred miles into Mobil 1 oil change and always got clatter if the Jeep sits for a day or two. I think I’m going to try the new rotella gas truck synthetic. Is there a “considered the best” oil filter for the 3.6? I typically just use OEM oil filters


Everything I’ve ever read indicates that the “best” air filters and oil filters are generally the OEM ones so that’s what I always use. Also there is a thread somewhere on here from a guy that blew his engine because of a bad aftermarket oil filter and Chrysler gave him the run-around on warranty coverage (initially denying it)


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Old 08-28-2019, 01:51 PM   #9
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I run pennzoil ultra Platinum 5w30, with a Mopar oil Filter. I do not have the start up clatter/tick noise.

I change it every 3K to 5K, depending on type of driving highway, verses in town short drives.
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Old 10-08-2019, 12:24 PM
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Quote:
Originally Posted by Blastek View Post
Give it a few weeks, it will come back.
Well, unfortunately you were right.

Its definitely not as bad, but its back.
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Old 10-08-2019, 01:07 PM   #11
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If you let it sit for any appreciable time at all the oil in the heads will totally drain out of the heads. If I let mine sit for say a week or more it will clatter. This is pretty much true for every vehicle out there.
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Old 10-08-2019, 06:55 PM   #12
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My Prefered oil is 5W30 Amsoil. Engine stays quiet between changes.


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