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Re: Pre-filling filters effect on first startup [Re: VeryNoisyPoet] #4812045 07/12/18 07:51 AM
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goodtimes Offline
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Filters that point base down will drain out the center area over time, like the v6 Camry we used to have. Depending on the main baring clearances I suppose as I would drain oil overnight to have a dripless oil filter removal. Every overnight start was a little bit of a dry start on that car, but light went out fast.
What about the oil pump relief valve, if oil is too thick the back pressure could be enough to open it, reducing flow.

Re: Pre-filling filters effect on first startup [Re: VeryNoisyPoet] #4812179 07/12/18 10:17 AM
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Triple_Se7en Online Content
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Personally, I would never buy a vehicle with a filter thread that's on the bottom of the engine oil filter housing.

Other things that stop me cold at dealers, is (one exmaple of many)....when I raise the hood and can't stick my hands in the engine, to occasionally do maintenance. My daughter's 2008 Pacifica is the worst I've ever encountered.


19' Hyundai Santa Fe 2.4 GDI - Valv Adv. 5w30 / OEM Oil Filter / 6oz Liqui-Moly
20' Kia Soul X-Line 2.0 Multi-port / Pennzoil Gold 5W30 / OEM filter
04' Colorado 3.5 Castrol Edge 0W40 / K&N filter
Re: Pre-filling filters effect on first startup [Re: VeryNoisyPoet] #4909349 10/29/18 12:33 PM
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VeryNoisyPoet Offline OP
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Changed oil a few days ago and did not add any oil to filter before installing besides a few drops on the gasket. Again filled with Valvoline 10w-30 Synthetic with Maxlife Technology and used a Mann W917 filter. Similar ambient temperatures. Similar vehicle angle.



Compare to the first video where I did prefill the filter before installing:



1998 V70 GLT / 202k miles [10w-30 Valvoline Syn w/ Maxlife Tech + Mann W917 filter]

"Use yah blinkah!"

"Be nice. The alternative involves an air horn and 7000 lumens of high beam."
Re: Pre-filling filters effect on first startup [Re: VeryNoisyPoet] #4909351 10/29/18 12:38 PM
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I see about 1 second difference to achieve oil pressure.

Re: Pre-filling filters effect on first startup [Re: VeryNoisyPoet] #4909451 10/29/18 02:27 PM
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Thanks for the videos. Using a kitchen timer, I get about a 2 second difference. Using measured pressure is certainly better than listening for rattle.

When listening for rattle, if the out going oil is in rough shape (I.E. low viscosity) I notice more startup rattle when not filling the oil filter. If the out going oil is in good shape, I don't notice any startup rattle when not filling the oil filter.

VeryNoisyPoet - good post.


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Re: Pre-filling filters effect on first startup [Re: VeryNoisyPoet] #4909568 10/29/18 05:01 PM
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Triple_Se7en Online Content
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Our ears are a better / truer method to troubleshoot cold startup noise, over-that of a gauge reading on your dashboard.


19' Hyundai Santa Fe 2.4 GDI - Valv Adv. 5w30 / OEM Oil Filter / 6oz Liqui-Moly
20' Kia Soul X-Line 2.0 Multi-port / Pennzoil Gold 5W30 / OEM filter
04' Colorado 3.5 Castrol Edge 0W40 / K&N filter
Re: Pre-filling filters effect on first startup [Re: VeryNoisyPoet] #4909654 10/29/18 07:10 PM
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Triple_Se7en - I agree with that.


Mazda 6
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Re: Pre-filling filters effect on first startup [Re: Triple_Se7en] #4909720 10/29/18 09:09 PM
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VeryNoisyPoet Offline OP
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Originally Posted by Triple_Se7en
Our ears are a better / truer method to troubleshoot cold startup noise, over-that of a gauge reading on your dashboard.


This test was only looking at time to build pressure. Maybe next time I can also try to record any startup noise and edit the videos together

My engine doesn't noticeably rattle or clatter on a dry start. Maybe a slightly noisier valvetrain because hydraulic lifters without pressure but otherwise well behaved. Then again I haven't had my head down under the car immediately after first startup and I might notice more bottom end noise there.


1998 V70 GLT / 202k miles [10w-30 Valvoline Syn w/ Maxlife Tech + Mann W917 filter]

"Use yah blinkah!"

"Be nice. The alternative involves an air horn and 7000 lumens of high beam."
Re: Pre-filling filters effect on first startup [Re: VeryNoisyPoet] #4909739 10/29/18 09:37 PM
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the Patriot has a vertical mounted filter on the bottom of the engine; the Buddy scooter has a horizontally mounted filter on the bottom of the engine casing; I fill both of these filters, allow the oil to soak thru the filter mefia and allow excess to drain for a few seconds before mounting (to prevent spillage)...while not completely filled there is volume inside to reduce the time of the first dry start after oil changes; the V Star motorcycle uses a horizontally mounted internal cartridge filter and presoaking it makes a mess so it goes in dry...

Last edited by kmrcstintn; 10/29/18 09:38 PM.

'15 Jeep Patriot Sport (2.4L 4-cyl), '13 Genuine Buddy 125 (125cc air-cooled thumper), '14 Yamaha V Star 250 (250cc air cooled v-twin)
Re: Pre-filling filters effect on first startup [Re: ZeeOSix] #4910386 10/30/18 06:09 PM
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Originally Posted by ZeeOSix
If the filter was bone dry, it will probably take 4~5 seconds instead of 2 second to reach full pressure.


That's the exact same numbers/times I get with my 4.6 liter F150


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
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