here is anouther storie fore ya guys i changed the oil in my work truck once took the old filter off put a little oil on the seal of the new filter and screwed it on i then filled the truck up with oil fired it up and there was oil leaking from the filter so i went under and tightened it a bit usally hand tight is good but thought maby i was week that day or something lol so i fired it back up and still leaking oil so now i was getting mad staring to think maby a had a defective filter or something so i took it off and looked at it and there was 2 seals on it i looked at the old filter and it dident have it on there anymore lol stuped me lol so now i always check to see if the seal is on the old one wen i take it off

 

lol...glad im not the only one!

 

guy @ my shop & i, never fill up the oil filter. i always try to use new oil on the new oil filter gasket...not the old stuff coming out.

 

I just put new oil on the new gasket and call it good. after I get the oil in the truck I run it to make sure my oil pressure returns, it takes a few seconds longer when I change the oil for the pressure to come up than when I start it any other normal time.

 

thats normal... the oil pump takes a second to prime itself after being drained

 

On my W250, I oil the gaskets, install the filters and cycle the pre-luber until it has pressure. Dry filters take a long time to fill up on a dual remote oil filter system. Small block, big block or V10, I've always filled the oil filter first.

 

After watching an old gear head fill his filter before he put it on, I always do the same. I never gave it any thought until I saw him do it. I think most people who don't fill the filter first, have not thought about it. It is common sense to me. Nothing hurts an engine more than a dry startup (except sand in the crankcase or running too lean)[sm=badidea.gif]. So if you can put a pint or more into your filter first, your engine gets oil that much quicker.[sm=goodidea.gif]

For the count: yes, I always fill mine first.
yes, I use new oil on the gasket.

 

I agree with the new oil on the gasket. But a "dry start" on an engine that's only been sitting for maybe 15 minutes? Unless you've used a chemical flush on your engine, there will still be a thin film of oil on the moving parts. Enough to prevent damage evidently for the millions and millions of oil changes done w/o filling the filter......

Dusty

 

Ok, so maybe not as 'dry' as say, licking the chalkboard clean with your toung. But it has to be better for an engine to pre fill the filter, than to not do it, right? I just hate waiting for the oil pressure to build at startup after an oil change. It sure seems to make pressure faster when you prefill it. Ya, I know, only about a one second instead of two. But I sware my engine says 'thank you' afterwards. lol

 

Oil on the gasket is very important if the engine is hot (like one of the the quick lube places). If its hot and you don't put oil on it, it will actually melt the seal and F everything up.