Guys,
New to this board but a wealth of info.
What does pre filling mean when I see this?
thanks again
New to this board but a wealth of info.
What does pre filling mean when I see this?
thanks again
What do you all mean by pre filling?
- Thread starter acdcking
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Never ever done this. Is there an advantage to it? Or is it not a big deal to not do it?
Also some oil filters are horizontal or upside-down vertical so it's difficult if not impossible to do. On my Ranger it screws on straight up so I could prefill it if I wanted...but I never bother.
When you start your car, look to see how long it takes for the low oil pressure light to go off once the engine fires. You'll see that it turns off relatively quickly, depending on whether any oil drained out of your filter since the last time you had it running.
If you don't pre-fill your filter, it will take 1-3 seconds for the light to go off. That means that no oil is getting to vital engine parts to do any lubrication during this time.
Let's say your engine runs at 1500 rpm for this time. In just one second, your crankshaft has rotated 25 times without oil! Sure, you've got some oil left in there, but not enough to prevent some surface contact(Boundary Lubrication - see "States of Lubrication on the Main Page). You're depending on the anti-wear additives to protect your engine, and you will likely have some metal-to-metal contact.
When your engine has oil pressure, you have a film of oil between all metal surfaces and (unless you have dirty oil)the wear on your engine is virtually nonexistent.
So pre-filling the filter might buy you 25 engine revolutions with oil pressure.
If you don't pre-fill your filter, it will take 1-3 seconds for the light to go off. That means that no oil is getting to vital engine parts to do any lubrication during this time.
Let's say your engine runs at 1500 rpm for this time. In just one second, your crankshaft has rotated 25 times without oil! Sure, you've got some oil left in there, but not enough to prevent some surface contact(Boundary Lubrication - see "States of Lubrication on the Main Page). You're depending on the anti-wear additives to protect your engine, and you will likely have some metal-to-metal contact.
When your engine has oil pressure, you have a film of oil between all metal surfaces and (unless you have dirty oil)the wear on your engine is virtually nonexistent.
So pre-filling the filter might buy you 25 engine revolutions with oil pressure.
I pre-fill. Never had any problems doing it, and I like seeing that oil light go out quickly when I start the car after an oil change.
I recall the oil filter on my (then new) 88 Mini Blazer 4X4 with 4.3L V-6,first year with that engine.
The stock remote filter was mounted with the opening "up" behind the driver's side headlight. What a joy to change oil & filter! No ramps, SUPER EASY filter removal, prefill and install.
What a far cry from my current '04 Accord.......Ramps with 2"x10" extensions (to keep from removing the bottom of the low slung portions of the front end), back of firewall horizontally mounted filter, special "cute" filter wrench, what a mess!
As pointed out previously sometimetimes it's impossible to prefill the filter. When it's mounted in a logical manner, such as our '03 Corolla, I always prefill. Why? Seems logical when you can do it.
The stock remote filter was mounted with the opening "up" behind the driver's side headlight. What a joy to change oil & filter! No ramps, SUPER EASY filter removal, prefill and install.
What a far cry from my current '04 Accord.......Ramps with 2"x10" extensions (to keep from removing the bottom of the low slung portions of the front end), back of firewall horizontally mounted filter, special "cute" filter wrench, what a mess!
As pointed out previously sometimetimes it's impossible to prefill the filter. When it's mounted in a logical manner, such as our '03 Corolla, I always prefill. Why? Seems logical when you can do it.
Aww c'mon TK, take it easy on the new guys. It takes a while to learn one's way around this great board. A certain amount of rehashing already-done topics is healthy. The alternative is that we actually reach a point where we've covered everything and there's nothing left to talk about. Like that silly TV commercial where the guy actually reaches the "end of the internet."
JHZR2
Staff member
Ugh... dont remind me of changing oil in Honda products. The placement of the filter in my GF's is absolutely horrible, and leads to burns, dripped oil, etc. regardless of how I try to change it.
I love being done just so that I dont have to do her car for a while.
JMH
**** , i was going to bring up pre-filling my pants, stating the importance of putting the filling in the front, not the back like that one time.quote:
Originally posted by ekpolk:
Aww c'mon TK, take it easy on the new guys. It takes a while to learn one's way around this great board. A certain amount of rehashing already-done topics is healthy. The alternative is that we actually reach a point where we've covered everything and there's nothing left to talk about. Like that silly TV commercial where the guy actually reaches the "end of the internet."
see, there's always something new to talk about.
my car filter is easy to pre-fill, and i always do. it helps me a bit actually, because my engine capacity is 4.25 quarts, so i fill the filter, then put four quarts in the engine. the rest goes into my trunk for top-off or the next change.
my bike filter is mounted horizontally (missionary) and is difficult to totally pre-fill.
the john deere is mounted upside-down (because they hate me), and obviously isn't filled.
"i realize no refill for Honda; do you have 4 cycl or 6clcy Accord? because for 4 cycl, you can actually remove filter from top, or you can turn the steering wheel and access the filter front tirewall. very easy after i found out".
It is the 2.4l 4 cyl. There is absolutely no way to remove the filter from the top on the '03-'04. You MUST be beneath the car to access it. You can turn the steering wheel until the tires get flat spots, you must be beneath the car be it ramps or a lift. True it is somewhat close to the front right tire but no way from the top unless you are elastic man.
If you just disconnect the ignition, you're flooding the cylinders with fuel that doesn't get burned. It will wash down the cylinders and probably do as much damage (little) as you would have caused by starting up without oil pressure (little). At least kill the fuel if you must crank. Besides, how is that easier than prefilling an oil filter?
This thread is making me appreciate my ''service from the top'' cartrige filter on my Ecotec. No slidding the already full catch pan to a different spot, or ever letting the filter drop into it.
Does this consider pre-filling?
Before I drain the oil, I fill the oil filter full with oil and put it aside. After I drain the oil, I see no oil in the filter (it must be gotten "inside". Install the new filter!
I feel the pain of RTexasF with the 04 Accord although I have 91 Accord. The filter located just the same as the 04. I did an oil change for a 00 and it is the same location. I hate Honda, they make everything difficult for DIY because you have to bring it to the dealer!
Before I drain the oil, I fill the oil filter full with oil and put it aside. After I drain the oil, I see no oil in the filter (it must be gotten "inside". Install the new filter!
I feel the pain of RTexasF with the 04 Accord although I have 91 Accord. The filter located just the same as the 04. I did an oil change for a 00 and it is the same location. I hate Honda, they make everything difficult for DIY because you have to bring it to the dealer!
I go through that step several times until the oil no longer disapears on my truck. It has a fat 3 1/2 filter. Takes a lot of oil to fil it.
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