Conflicting reports
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From: NC
Conflicting reports
I'm getting ready to do my first oil change on my first diesel and I am getting conflicting reports on what the oil quantity is on my truck. It's a 1995 F350 crew cab dually with the 7.3L powerstroke turbo diesel. Everything is stock, no big oil pan or anything that I know of. Could anyone help me out with this question? Thanks in advance.
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From: NW Wisc
Definately a must!!!!!
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From: Chino Valley, Arizona
Caterpillar says to leave oil filters dry on their engines! the 30 seconds the engine is idling with out oil pressure is less detrimental to the engine than the 2 quarts of un filtered oil you pour into the filter, the engine still has oil on all the bearing surfaces when you drain it so nothing is running dry, it is just not pressurized so idling until it builds pressure doesn't cause any extra wear.
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From: Chino Valley, Arizona
depends on what micron of filtration the oil has compared to what micron the filter is.
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I've filtered new hyd. oil straight out of a 200L drum, I thaught the same thing and thaught it was a waist of time until one day I was filling a hyd. tank, I got half way through a 200L drum and the filter restriction gauge originaly in the green pegged itself in the red. You can have dirty batches of oil.
With that said, I've never heard thm say that about not prefilling engine oil filters, that is news to me, I know they do not want you to prefill fuel filters, that was a biggy. I was told to spin a dry filter onto a CAT and if equiped with an electric pump, leave the key on to fill the filter that way otherwise set camp and prime the filter with the hand primer.
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From: Rogue River, OR
Well come to think about it.....a mouse or such disgusting item is occasionally found in a soft drink or beer bottle etc. so, I guess there is a higher likelihood of something foreign (Smaller than a mouse) 
getting into motor oil production.
Rog
getting into motor oil production.Rog
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From: Ashland City, TN
Caterpillar says to leave oil filters dry on their engines! the 30 seconds the engine is idling with out oil pressure is less detrimental to the engine than the 2 quarts of un filtered oil you pour into the filter, the engine still has oil on all the bearing surfaces when you drain it so nothing is running dry, it is just not pressurized so idling until it builds pressure doesn't cause any extra wear.
I posted it on here, and everyone called me an idiot. Though I always thought he was correct.
Though I fill my filter anyways.
But it is correct. the oil that is not filter could be worse on the engine if they get to the injectors in our system, and there is something bad in there.
There is no regulation that I know of that says the oil in the bottle has to be "filtered" to a certain micron filter before distributed into the jug.
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Think about it like this. Your all dirty, your usually laying underneath your truck, depending on the filter, it comes in a flimsy little cardboard with nothing stopping a foreign object from getting into the filter before it is installed on the truck.
I think the chances of contamination from just putting the filter on is far greater than what is in the oil bottle.
also, I don't think either way will be detrimental to the engine because at a cold start the oil pressure isn't there for a few seconds the same as waiting for it to fill the oil filter.
Which ever way that you feel more confortable with IMO. It really isn't going to matter that much.
I think the chances of contamination from just putting the filter on is far greater than what is in the oil bottle.
also, I don't think either way will be detrimental to the engine because at a cold start the oil pressure isn't there for a few seconds the same as waiting for it to fill the oil filter.
Which ever way that you feel more confortable with IMO. It really isn't going to matter that much.