Why Prime The Oil Filter
04-16-2008, 05:50 PM
#11
6th Gear Member
Join Date: Apr 2007
Location: California
Posts: 10,468
RE: Why Prime The Oil Filter
ORIGINAL: Derf00
Oh lordy...
Priming or pre-filling an oil filter is basic stuff. It's like using brake pads with shims or anti-squeal or knowing to mix anti-freeze 50-50 or 30-70 depending on conditions.
The reason behind doing that is if you put a completely empty oil filter into a car and start it up, there is NO oil or oil pressure in the system until that filter fills up and starts getting oil pushed through it. Since 80% of engine wear over its life occurs at startup when no oil is present, you want to minimize the amount of time oil takes to fill up that new filter and push into your engine. That 1-2 second difference means a lot.
ORIGINAL: 1985stang
What are you talking about?I've never heard about "priming" the oil filter, besides putting oil on the seal.
What are you talking about?I've never heard about "priming" the oil filter, besides putting oil on the seal.
Priming or pre-filling an oil filter is basic stuff. It's like using brake pads with shims or anti-squeal or knowing to mix anti-freeze 50-50 or 30-70 depending on conditions.
The reason behind doing that is if you put a completely empty oil filter into a car and start it up, there is NO oil or oil pressure in the system until that filter fills up and starts getting oil pushed through it. Since 80% of engine wear over its life occurs at startup when no oil is present, you want to minimize the amount of time oil takes to fill up that new filter and push into your engine. That 1-2 second difference means a lot.
04-16-2008, 06:17 PM
#12
Join Date: Apr 2008
Posts: 5
RE: Why Prime The Oil Filter
i fill all the oil filters before i install them on my Diesel and my cars, its just a good habit to do, a large oil filter can absorb alot of oil before its full. this means that there is a small portion of time that the motor isnt getting the normal amount of oil. It's probly not enough time to hurt anything, but filling the filter before hand sure doesnt hurt as well
04-16-2008, 06:53 PM
#14
5th Gear Member
Join Date: Jun 2005
Location: San Diego, CA
Posts: 3,315
RE: Why Prime The Oil Filter
if your just changing the oil, theres gonna be residue, and oil that hangs on where it is, 1-2 seconds shouldnt hurt anything
seems logical to do when the engine is sitting or brand new, but thats what priming the oil PUMP is for, it pumps the oil through the filter and up into the engine before startup, so, no big deal
seems logical to do when the engine is sitting or brand new, but thats what priming the oil PUMP is for, it pumps the oil through the filter and up into the engine before startup, so, no big deal
04-16-2008, 07:16 PM
#15
3rd Gear Member
Join Date: Sep 2007
Location: Florida
Posts: 761
RE: Why Prime The Oil Filter
I've always put some oil in the filter when doing changes out of habit. I don't know if it's really necessary or how much of a difference that extra second or two without pressure makes, but it doesn't hurt anything if you do "prime" the filter (never heard it called that 
) so I do it for piece of mind.
) so I do it for piece of mind.
04-16-2008, 07:50 PM
#16
3rd Gear Member
Join Date: Jul 2006
Location: Kentucky
Posts: 913
RE: Why Prime The Oil Filter
ORIGINAL: Derf00
Oh lordy...
Priming or pre-filling an oil filter is basic stuff. It's like using brake pads with shims or anti-squeal or knowing to mix anti-freeze 50-50 or 30-70 depending on conditions.
The reason behind doing that is if you put a completely empty oil filter into a car and start it up, there is NO oil or oil pressure in the system until that filter fills up and starts getting oil pushed through it. Since 80% of engine wear over its life occurs at startup when no oil is present, you want to minimize the amount of time oil takes to fill up that new filter and push into your engine. That 1-2 second difference means a lot.
ORIGINAL: 1985stang
What are you talking about?I've never heard about "priming" the oil filter, besides putting oil on the seal.
What are you talking about?I've never heard about "priming" the oil filter, besides putting oil on the seal.
Priming or pre-filling an oil filter is basic stuff. It's like using brake pads with shims or anti-squeal or knowing to mix anti-freeze 50-50 or 30-70 depending on conditions.
The reason behind doing that is if you put a completely empty oil filter into a car and start it up, there is NO oil or oil pressure in the system until that filter fills up and starts getting oil pushed through it. Since 80% of engine wear over its life occurs at startup when no oil is present, you want to minimize the amount of time oil takes to fill up that new filter and push into your engine. That 1-2 second difference means a lot.
04-16-2008, 07:55 PM
#17
D.R. THE PATHETIC DORK
Join Date: Jun 2007
Location: West Virginia
Posts: 30,863
RE: Why Prime The Oil Filter
MAN...........look ....on a new engine it's important to prime the oil system as to not cause damage on initial start up but on a car that has a well broken in engine there is enough oil resting on the bearings and all other mechanical /moving parts that fro the brief secong it'll take to fill the filter up...it won't matter..it'll be fine so don't worry about it
......look ....on a new engine it's important to prime the oil system as to not cause damage on initial start up but on a car that has a well broken in engine there is enough oil resting on the bearings and all other mechanical /moving parts that fro the brief secong it'll take to fill the filter up...it won't matter..it'll be fine so don't worry about it
](Btw Haromaster87, hope it's still running "okay" for you 2 years down the road Bud
04-17-2008, 09:29 AM
#19
1st Gear Member
Join Date: Feb 2008
Posts: 50
RE: Why Prime The Oil Filter
ORIGINAL: Derf00
Oh lordy...
Priming or pre-filling an oil filter is basic stuff. It's like using brake pads with shims or anti-squeal or knowing to mix anti-freeze 50-50 or 30-70 depending on conditions.
The reason behind doing that is if you put a completely empty oil filter into a car and start it up, there is NO oil or oil pressure in the system until that filter fills up and starts getting oil pushed through it. Since 80% of engine wear over its life occurs at startup when no oil is present, you want to minimize the amount of time oil takes to fill up that new filter and push into your engine. That 1-2 second difference means a lot.
ORIGINAL: 1985stang
Priming or pre-filling an oil filter is basic stuff. It's like using brake pads with shims or anti-squeal or knowing to mix anti-freeze 50-50 or 30-70 depending on conditions.
The reason behind doing that is if you put a completely empty oil filter into a car and start it up, there is NO oil or oil pressure in the system until that filter fills up and starts getting oil pushed through it. Since 80% of engine wear over its life occurs at startup when no oil is present, you want to minimize the amount of time oil takes to fill up that new filter and push into your engine. That 1-2 second difference means a lot.
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