- #53 of 112
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2005 expedition 5.4 oil overfill
by pec
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May 13, 2005 (6:08 am)
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Does an oil overfill cause the crankshaft to hit the oil and cause a rough idle?
Thanks
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- #54 of 112
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A slight overfill, no problem, but....
by csandste
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May 14, 2005 (8:47 am)
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if you've overfilled enough for the crank to hit the oil, you don't have oil in there you've got cool whip. Air does a real bad job of lubricating!
My daughter had an early 90's Prizm which was burning a little oil. She thought it might be OK to add a quart every time she filled up without checking the dipstick. She built up so much pressure that she knocked a spark plug out. Car still ran OK but had LOTS of blow by after that.
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- #55 of 112
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Changing oil filter
by quockieo1
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Jun 03, 2005 (8:18 pm)
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hi, can i just change the oil filter without the oil? I got the oil changed today but was unable to change the filter because i forgot my filter wrench and couldnt muscle myself to twist it off (plus the filter was VERY hot when i touched it).
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- #56 of 112
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Re: Changing oil filter [quockieo1]
by Mr_Shiftright HOST
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Jun 04, 2005 (7:42 am)
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Replying to: quockieo1 (Jun 03, 2005 8:18 pm)
Yeah you can do that, but it's not a good idea in the future to change the oil while leaving the filter on there. Your clean fresh oil may flush dirt out of the old filter into the system. So maybe next time do the next oil and filter change a little sooner.
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- #57 of 112
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Re: Changing oil filter [Mr_Shiftright]
by rsht
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Jun 04, 2005 (12:51 pm)
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Replying to: Mr_Shiftright (Jun 04, 2005 7:42 am)
Think abou it, Unless the oil filter is damaged, otherwise just some (whatever was in the old filter) old oil was flushed out of the old oil filter; dirt should still remain/trapped in the filter. 
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- #58 of 112
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Re: Changing oil filter [rsht]
by Mr_Shiftright HOST
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Jun 04, 2005 (12:55 pm)
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Replying to: rsht (Jun 04, 2005 12:51 pm)
Yeah, I see what you're saying but if you have an old, dirt-filled filter and you run clean fresh high detergent oil through it, I think it's plausible that you are going to push some crude into the system. If you cut it open and hit it with a detergent under pressure from a hose, you'd knock dirt out of it I think.
Anyway, no biggee...I don't think there's any real harm to be done.
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- #59 of 112
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Re: [quockieo1]
by wtd44
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Jun 04, 2005 (2:50 pm)
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Replying to: quockieo1 (Jun 03, 2005 8:18 pm)
Don't forget that the old filter that you left in place had a bunch of residual oil in it that was just as dirty as the oil you drained. When you put in the clean oil, the filter-full of old oil is mixed in. There are other sources of dirty oil in the engine during an oil change, but less than in the circumstance you described where you add the filter-full on top of the rest.
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- #60 of 112
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Re: special filter [krzyss]
by flytedhy
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Jun 05, 2005 (9:19 am)
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Replying to: krzyss (Apr 22, 2005 9:51 am)
Actually a few manufacture's do use a special oil and oil filter from the factory. The oil is may be called 5w20 Castrol, but it is made to company spec's, and not the same as you buy off a shelf. They normally have more additives to prevent rust/corrosion as the car is rarely run to normal operating temps. VW and Mercedes-Benz come to mind, I'm sure there are more. The filters are much more restrictive in the size micron particles they catch, but also reduce oil flow, which is why they don't use them normally. MB also uses these filters after a engine rebuild or major engine work. A first oil/filter change on any new/rebuilt vehicle is a good idea since any new engine is tight and many parts wear as the engine breaks-in.
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- #61 of 112
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Break-in oil....yep!
by basils
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Jun 07, 2005 (5:20 am)
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True, some manufacturers use special blend oils in their new cars. Honda does this from what I've read. The new CRV we purchased indicated this and said not to change the oil for the first 5k miles. Lab tests, from somebody on another site, proved this out. And a Honda tech was also saying that yes, indeed, they use a break-in oil and PLEASE leave it in for at least 4k miles.
Take this info for what it's worth.
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- #62 of 112
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Re: A slight overfill, no problem, but.... [csandste]
by mike1028
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Dec 09, 2005 (12:54 pm)
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Replying to: csandste (May 14, 2005 8:47 am)
I have a 2006 mazda 3 with 3,000 miles. Took it to my local Mazda dealership for an oil change. After picking it up and heading home, the white smoke began pouring out and the engine began running rough. Stopped the car, called the dealer, had the car towed back. The dealer over filled the engine with oil. The dealer drained the oil and refilled to correct level. The car continued to pour out white smoke. They gave me a loan car while they diagnose the problem. If they don't offer to replace the engine, how can I be sure the longevity of the engine has not been compromised?
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