Changing oil without filling filter??

[Tony T.]

I pre-fill my oil filter Fleetguard Stratspore, but before filling I usually inspect the filter inards for any forgein material, such as metal shavings or burrs from the threading process. Also Chevron Delo has gone to a pull tab instead of the foil seal now.



Tony

 

[rbattelle]

Cummins Troubleshooting and Repair Manual ISBe and ISB (Common Rail Fuel System) Series Engines, page 7-5, "Lubricating Oil and Filters", "Install" reads:



NOTE: Fill the filter with clean lubricating oil before installation.



Later, on page 7-13:



CAUTION

The lack of lubrication during the delay until the filter is pumped full of oil at start-up can damage the engine.



I did not add the bold, Cummins did.



For our engines, therefore, filling the oil filter is required by Cummins. Period.



-Ryan

 

[Grizzly]

I don't prefill mine, but I do pull the fuel system relay and crank for 5 full seconds to let the pump build some pressure. I also pre lube turbos this way too.





Justin

Oh, what would you know, you like to change your oil every 1000 miles free at the dealer in Utah your daddy works at. What a waste of good oil and filter.

 

[Grizzly]

One trick is to use old oil from the last customer with the seven year free oil change. :-laf :-laf :-laf Ron Bissett in Metro Louisville KY

I don't think any reputable 5 star Dealer would ever do a stupid thing like that, stupid! :-laf

 

[Texas Diesel]

Cummins Troubleshooting and Repair Manual ISBe and ISB (Common Rail Fuel System) Series Engines, page 7-5, "Lubricating Oil and Filters", "Install" reads:



NOTE: Fill the filter with clean lubricating oil before installation.



Later, on page 7-13:



CAUTION

The lack of lubrication during the delay until the filter is pumped full of oil at start-up can damage the engine.



I did not add the bold, Cummins did.



For our engines, therefore, filling the oil filter is required by Cummins. Period.



-Ryan

This should settle it except for those who know more than Cummins.



I have always prefilled my oil filters, on everything. It's real easy, look in the filter they slowly fill and watch for any debris.



Cool, now besides oil brand wars we can fight over: "to prefill or not to prefill, that is the question" :-laf

 

[klenger]

There are very few forum threads that have ever caused me to change my opinion about anything (and I have an opinion about everything :-laf ). This one is an exception. Ryan's post quoting the Cummins procedure sure settles the isssue in my mind. Good work.



I think I will look in the paint dept at Home Depot or Ace Hwd for some paper paint funels that have the screen in the bottom of them for prefilling the filter. Seems like this should take the risk out of contaminating the oil with anything large enough to plug an oil galley, and then just throw it away. Comments?

 

[rbattelle]

There are very few forum threads that have ever caused me to change my opinion about anything (and I have an opinion about everything :-laf ). This one is an exception. Ryan's post quoting the Cummins procedure sure settles the isssue in my mind. Good work.



I think I will look in the paint dept at Home Depot or Ace Hwd for some paper paint funels that have the screen in the bottom of them for prefilling the filter. Seems like this should take the risk out of contaminating the oil with anything large enough to plug an oil galley, and then just throw it away. Comments?

Or, in the lawn & garden department at Home Depot they have these giant-sized funnels that come with a little filter screen that fits down in the bottom. Very convenient, although it takes a long time for that thick 15w-40 to filter through.



The paper ones would also work, I'm sure.

 

[klenger]

I would only use the funel/filter to prefill the oil filter. I'm not to worried about the oil that goes in the crankcase since it passes through the oil filter anyway.

 

[J.BURCHFIELD]

You are right Cris. Some guys just don't care. I bet he does not work on your truck.

 

[2-ND TIME]

oil changes

There was an article numerous issues ago that said that the merlin engines were damaged during WW II because of not lubericating the engine parts on assembly. Yes this is dry assembly they were scuffing the parts.



One being that the oil container is for me a 19/L pail and the outside cover then the inner plastic has to be pulled off. That is easy enough.

The 1 liter or quart containers when pulling off the foil covers care as usual must be observed so that isn't a problem.



Filling the oil filter is easy on the cummins engines having a vertical filter. Even if side mounted one can partial fill it. This redueces the dry lubercation properties of air, stated in the above mentioned article in TDR. The extra time to fill it is neglitable compaired to possable damage.

In the winter when changing oil I have even seen snow flakes go in the oil do I worry about it not really because the engine temp will evaperate it very quickly. The new oil is much better than the old oil so out it goes. Iam more in favor of letting it drain all night to remove more of the junk at the bottom of the pan. So use synthetic oils.