Filling the filter with oil is something that should be done on all vehicles. My domestic vehicles all have filters that sit straight up and down, so it is easy to spin the filters on pretty much full of oil.

On the S2000 I will fill the filter up with oil and then let it sit for a few seconds and the oil absorbs completely into the media. I will do that 2-3 times as the oil continues to absorb in the medai. By the third time or so I just fill the filter about half-way, you can tell when the media can't absorb any more oil, then I spin it onto the block. The S2000 filter sits on an angle so you can have it about 50% full without spilling, with the filter media totally soaked in oil it will be adequately filled, and much better than a completely dry filter.

On my first start after winter storage I will pull the fuel pump fuse and the fuel injector fuse from the under dash fuse box, and I will turn the engine over a couple times. You could do that on each oil change if you wanted, I don't tend to do it on oil changes but it is simple enough to do.

 

^ i do the exact same thing on all of my cars. Whether it's causes damage or not, those first few seconds at start-up on a dry filter sound scary, haha. That's enough to sway my opinion.

 

Our cars don't have the fuel pump relay connected to the oil pressure switch right? On most cars if the fuel pump relay fails the car will still start because the fuel pump relay will activate once the oil pressure reaches 4 psi(or about 6 seconds of cranking).

 

I never had soaked an oil filter before install, but maybe I will now. Never thought a second of cracking and starting would really cause damage especially as synthetic oils leave more of a film, especially over time, than dino oils.

 

I'm sure the amount of increased wear is negligible if not zero, but it's just an OCD thing as a semi-filled filter has to be better than a dry and empty filter in my books . Try it once and see if you like it, if not go back to the way you were doing it. I know when I change my oil the oil light does not stay on at all during start-up, it is off immediately.

You are right that there is enough oil in the engine that is clinging to all parts, and the oil in the bearings remains in place and is not displaced during oil changes.

 

i've ALWAYS filled the filter first- but again, i'm OCD as well. for your first time, pour some fresh oil in the filter, wait, and see how much absorbs into the filter media. fill it some more.

given that our filters are canted up at an angle, it can have quite a bit in there before it spills out.

darcy

 

Me too, I always prefill the filter whenever I change oil. On cars with a horizontal filter, you can't put much in (it helps if you spin it on fast, centripetal force prevents the oil from pouring out).

A little effort on my part dramatically limits the amount of time engine runs with no oil pressure. Not sure how much it helps, but I know it can't hurt.