I've been changing oil for 40 years on motorcycles and cars and never heard of this practice until I started hanging out here. I'm curious what percentage of people do this and is there any documented advantage to it. None of my engines have ever blown up for lack of lubrication on start up after an oil change, but hey, I'm here to learn.
Do you pre-fill the filter with oil during OC?
- Thread starter Indydriver
- Start date
- Status
With spin-on filters that are mostly upright for installation, I think it's a good practice but certainly not required. Both my cars have cartridge filters that would create a stupid mess if you tried to prefill them and they seem to suffer no ill fate.
I have a translucent return line from my oil bypass filter and even through the tiny (0.032" diameter) orifice I can assure you the filters get filled FAST!
I have a translucent return line from my oil bypass filter and even through the tiny (0.032" diameter) orifice I can assure you the filters get filled FAST!
There is a theoretical advantage but in practice it probably doesn't matter.
I prefill filters if doing so won't create a mess, which means I do it on my Taurus and Accord, but not on the Sienna.
I prefill filters if doing so won't create a mess, which means I do it on my Taurus and Accord, but not on the Sienna.
Originally Posted By: river_rat
I do. Lots of threads already on this topic.
I'm sure. No search plus wrong forum to boot. Ah, the joys of doing this on the iPhone.
I do. Lots of threads already on this topic.
I'm sure. No search plus wrong forum to boot. Ah, the joys of doing this on the iPhone.
For my engines with filter cartridges: no.
For my engines with spin-on filters that mount horizontally: yes but only halfway.
For my engines with spin-on filters that mount on the bottom of the engine: yes but not all the up to the gasket.
For my engines with spin-on filters that mount horizontally: yes but only halfway.
For my engines with spin-on filters that mount on the bottom of the engine: yes but not all the up to the gasket.
I prefill all filters. If it's a horizontal filter, I pull the engine and turn it on its side, then reinstall.
On my 03' Ford Focus.....YES...I pre-fill...about 4 to 6oz.... on my PureOne vertical mount spin-on filter.
I just think it gets oil to my engine a few seconds faster. It can't do any harm....
_________________________________________
03' Ford Focus (2.3L Duratec PZEV) / 98K
PP 5w20 / Puro PureOne / OCI: 7500K +/-
I just think it gets oil to my engine a few seconds faster. It can't do any harm....
_________________________________________
03' Ford Focus (2.3L Duratec PZEV) / 98K
PP 5w20 / Puro PureOne / OCI: 7500K +/-
Last edited:
For filters with downward-facing mounts, yes.
For filters with horizontal-facing mounts, half-full.
For filters with upward-facing mounts, it would be crazy! I have only seen this design on my Peugeot.
For filters with horizontal-facing mounts, half-full.
For filters with upward-facing mounts, it would be crazy! I have only seen this design on my Peugeot.
I do
Jim
Jim
No reason to do this, as you've proven with 40 years of not doing it with no ill effects. Much more important to actually change the oil and filter on a regular basis.
I do.
I've heard start-up knock without pre filling, never with pre- filling.This was on a 3.7 Dodge engine ,and on a 350 Chevy.It was only one second but it was enough to always try to prefill at least to let the fibers soak-up some new oil.
There was nothing wrong with the bearings or an already worn out engine ,and only detectable to a trained ear,but it was there.
There was nothing wrong with the bearings or an already worn out engine ,and only detectable to a trained ear,but it was there.
What more importance is don't forget to lube the filter gasket with some oil before install, also make sure the old gasket is removed from the mounting surface with the old filter.
Nope. Cartridge style sitting dead center on top of the motor. No easy or reasonable way to do so.
Always prefill.
- Status
Similar threads
