ANOTHER engine oil capacity question......
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Senior User
Joined: Mar 2010
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ANOTHER engine oil capacity question......
Before I get jumped I did a search on this subject and did not get a concrete answer.I know there has been an ongoing debate over the appropriate amount of oil to be added after an oil change and I was wondering if there has been a solid judgement made as to the answer to this question. I have always added 15 qts. after every oil change since the truck was new and this puts my oil level on the stick just a little above the full mark. I have never experienced any problems from doing this. I just changed the oil again last week and I only added 14 qts. this time to see what happened. 14 qts. puts my oil level right at the full mark and I do not see any difference in the way the truck starts or runs in any way. To be honest I put just as much faith in the fact that the owner's manual would give you the proper refill capacity as I do the fact that all dipsticks and dipstick tubes would be EXACTLY the same on all trucks. Just for the record I do change the filter BEFORE putting the drain plug back in so that I get as complete of a drain as possible. I know some oil remains in the engine that does not drain out and I have also read that a COMPLETELY empty engine (rebuild etc.) will hold 18 qts. of oil. What do ya'll think? Have we come to a concrete answer to this question? Thanks in advance!!
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Senior User
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I have to say these were my initial toughts exactly. I just had to try it because I had read that some people had improvements in the way their truck ran after reducing the oil capacity to 13.5 to 14 qts. but where I don't see a difference I will just stay with the 15. I think the fact that 15 puts your dipstick to the full mark and 14 puts mine to the mark adds weight to my theory that not all dipsticks/tubes etc. may not be created equal. As Sammy said,either is probably just fine but I think I'll stay with the 15 to be safe. Thanks guys,just wanted your opinions!!
Lead Driver
Joined: Sep 2007
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From: Scio, OR
I pour in 3 gallons, and about 1/4 of the 4th. Then start and idle for a few minutes, shut it off, check it, and add a little bit at a time until the level is where I want it.
It ain't rocket science.
It ain't rocket science.
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Hotshot
Joined: Jul 2005
Posts: 13,834
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From: Middle Tn.
If that's on the 7.3 in your sig. no big deal. If you have a 6.0, 10,000 mile oil changes is waaay tooo long. 6.0's shear oil really bad and should be changed every 5,000 miles.
Hotshot
Joined: Jul 2005
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From: Middle Tn.
I've never done the ccv mod, use 15 qts. and never had a bit of problems pertaining to oil level or contamination.
Posting Guru
Joined: Mar 2003
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I have 2 6.0s and the Blackstone reports state I should go to 12,500 miles changes. Maybe you don't use the right oil!
Hotshot
Joined: Jul 2005
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From: Middle Tn.
Glad you have two stellar 6.0's. You are one of the few that have posted those results. Actually the only one that I recollect. Good luck on your injectors. Not saying I know everything or anything, you are just in the very small minority.