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  1. #1
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    Default Oil over fill

    So I changed the oil on my compact, under filled it by a hair, then over filled it by a notch. It is not even a quarter inch too high on the dipstick. Engine runs just as it should. Do I have to drain some out cause that would be a pain. And do you guys check it hot or cold? Does it make a difference? Thanks!

  2. #2
    Super Star Member brin's Avatar
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    Default Re: Oil over fill

    Quote Originally Posted by PioneerMan View Post
    So I changed the oil on my compact, under filled it by a hair, then over filled it by a notch. It is not even a quarter inch too high on the dipstick. Engine runs just as it should. Do I have to drain some out cause that would be a pain. And do you guys check it hot or cold? Does it make a difference? Thanks!
    I've done the same thing in the past and about the same overfill amount you describe...I just let it go and all was well ....so I would say you are fine..but you might want to wait and see what others say...
    Bob

    WORRYING does not take away tomorrow's TROUBLES, it takes away today's PEACE.


    NH - TC-29 , FEL, Bush hog, Bush hog brand finishing mower, Post hole digger, 6' Back blade, sub-soiler, Pallet forks, 20KW PTO Generator , 21 hp Murray Mower
    JD -3020 with FEL and a 16 HP. K-Grow Lawn Tractor (bought from K Mart 1994) and runs great !
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  3. #3
    Gold Member mvwicker's Avatar
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    Default Re: Oil over fill

    I check cold, but expect that it will read more full when hot. Some vehicle manuals (e.g., for a DRZ 400 motorbike) specify checking when hot, 3min after engine shutdown, what a PITA. Maybe your owner's manual has a recommendation?

    Neither a little below "fill" nor a little above "full" should make any difference in engine operation. Way overfilling sometimes leads to foamy oil churned up by the crankshaft, but the foam will exit via oil breather or crankcase vent or PCV valve (depending upon the age of the tractor) and thus bring the oil level down.

  4. #4
    Platinum Member retiredmgn's Avatar
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    Default Re: Oil over fill

    That's a fun one eh? Been there, done that. I was always worried excess oil would end up building deposits on the head. At least that's something I read when I was a kid.
    So, you crawl back underneath, unscrew the drain plug and make feeble attempts to screw it back in before too much oil drains out. Meantime oil is running down your arm, on your favorite flannel shirt and a jacket you've been trying to keep clean. Rarely goes as planned. Normal procedure here is recheck the dipstick while slowly filling. Find it's low. Offer a few cuss words to the gods and this time add oil slowly, checking dipstick regularly.
    Nelson
    Central Maine

  5. #5
    Super Star Member Diamondpilot's Avatar
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    Default

    If I was to drain it down I would just take off the filter and dump it. Repeat if necessary. My filter holds a 1/2 qt.

    Chris

  6. #6
    Super Member
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    Default Re: Oil over fill

    I always understood the risk from too much oil was that the crankshaft action could cause the oil to foam in the engine and could cause oil starvation. Too much oil can be a very bad thing and when it happens to me I just keep dumpimg it out of the oil filter.
    ******

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  7. #7
    Epic Contributor Soundguy's Avatar
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    Default Re: Oil over fill

    Taht small amount overfull should not be an issue.

    I have several machines that are 5.5qts with filter on a change.

    I let all 6 drain in. oil shows just above the hatched line.

    have yet to ever have an issue.

  8. #8
    Super Member Gary Fowler's Avatar
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    Default Re: Oil over fill

    Much depends on the size of your crankcase. I dont think 10% of capacity overfill would hurt, ie 1/2 quart on a 5 quart capacity engine. I overfilled my truck by about 1/4" on the stick which was about 1/2 a quart and had no problems. Used full synthetic oil and even with the overfill, still increased my mileage by at least 3 MPG average so I dont think you will hurt it.
    2010 LS P-7010C 20F/20R gear tractor & FEL, 2009 Kubota B 26 TLB, RTV 900 Kubota,17 foot Lund boat with 70HP motor, 2012-20 ft 12k GVW trailer, 2011- 52" Craftsman ZTR mower, 2013 Ferris Zero Turn, 3 weed whackers, pressure washer, leaf blowers, 7 foot bush hog, 8 foot landscape rake , 8 foot 3 PH disc, 2 row cultivator, 350 amp Miller AC/DC welding machine and all the tools needed to keep them all repaired and running.

  9. #9
    Platinum Member retiredmgn's Avatar
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    Default Re: Oil over fill

    Quote Originally Posted by Diamondpilot View Post
    If I was to drain it down I would just take off the filter and dump it. Repeat if necessary. My filter holds a 1/2 qt.

    Chris
    Dump from the filter??? Why didn't you guys tell me this years ago ???
    Nelson
    Central Maine

  10. #10
    Epic Contributor Soundguy's Avatar
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    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: Oil over fill

    better yet.. change the filter.. it's cheap and never hurts.. and there goes yer 1/2 qt..

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