Harley Davidson Oil Change

Q: Hi there, I’m a customer of yours (a few dvd’s). I’m hoping to get your valued opinion on a recent issue…

2005 Screamin Eagle Electra Glide. Last service, dude left it low on oil. In a rush, I mistakenly dumped an entire quart of oil in it, (thinking it’d be ok even if 1/4 qt too much). Well, I was wrong, because after a long-ish hi-rpm ride, the back of the motor, brakes, rear wheel, etc were soaked. So, I cleaned everything, then changed the oil (and filter) with 4 fresh qts of Syn3. Thought problem was solved, but after another ride, clean fresh oil making a puddle on top of the transmission case, and of course, back of bike (brakes, wheel, etc) are soaked again. I even pulled off the air filter. There was a sheen from oil, but no real mess at all. I was under the impression that overfilled crankcase oil would come out the breather (which is fine), but now that it’s got exactly 4 quarts again in it, why is it still blowing out oil? Could I have ruined some seals or gaskets elsewhere, (kind’a like having too much blood pressure?).. Any clues. Really nice bike…I’m nervous now.

Thanks VERY much in advance!
Dave L

A:Dave, if you are still dumping 4 entire quarts into your bike; you may still be over filling the system. You need to purchase 4 quarts of oil for a Harley Davidson oil change on a 2005 Electra Glide, but rarely will you need to use more than 3 1/2 or 3 3/4 quarts for only an oil change. Usually, like you said, an over filled system will leak from the top breather (or sometimes blow out your fill plug). As for where this oil is coming from; you are going to have to play a little detective. Remember: the oil will always be making it’s way from top to bottom and front to back. However, first thing we would check is to see if your transmission is overfilled. An overfilled Transmission will leak out of the transmission vent and will make the area you described wet with fluid. See if the vent line is wet at the end. Good luck.

Related Question:

Hi my 2010 fatboy had oil change done and has been over filled by half a litre picked up from workshop and did a 300 km ride when I got home checked it over and its overfull.

A: That is not really a big deal. However, it can be messy if oil begins to push by your oil fill plug while riding. Remove your oil drain plug and drain out what is necessary to have the correct oil level for your bike.

Related Question:

I know we have videos on oil changes, but this question seems much more specific. “hi guys,…thanks for this website it’s fantastic. I think i’ll take you up on the offer of asking a question, so here goes. I recently purchased an 07 softail deluxe. it only had 9,200 mi on it when I bought it and now that I’ve put 800 miles on it I decided to change my oils. I changed the engine oil and checked the plug magnet and it was clean and I completed that change. I next changed the tranny oil and found the oil to be fairly clean but with a little bit of cloudiness in the oil from what seems like very very fine metallic shavings, not a lot but just a mist of it in the oil and some on the magnet in the plug. next I changed the primary oil and found that to be the dirtiest of all the oils and some metallic shavings on the plug magnet, not very much but just clustered around the magnet. also strangely, the primary plug magnet seems to be chipped or corroding away about a 1/4 of the way. I have heard that some ware is to be expected but how much is ok and what is bad enough to do something about thanks, tom r

A: Nothing you describe is cause for concern. If you have chunks of steel, or aluminum; you have a problem. But you would typically be aware of the problem before draining the fluid.

Related Videos:

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Find Your Model Here To Do Your Own Oil Change: Maintenance

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5 Responses to “Harley Davidson Oil Change”
  1. Kerry

    The other day I was changing oil in my 08 low rider, I had the dipstick out so it would drain good and I got to doing something else while it drained, My little granddaughter told me a bug got in the oil hole, So after I flushed it out about 3 times I never seen a bug. So I guess I’m going to have to remove the oil pan and check I don’t know if a bug got in there or not. My question is does the Dyna low rider have a screen or something in the oil pan to keep foreign matter out of the engine,just in case something does get in it when checking the oil.

    • Customer Service Techs

      Hi, Kerry. No. There is no screen or filter in the oil pan. Any foreign debris will likely get stopped in the oil filter, but, only after it passes through the engine. Fortunately, bugs (even Beetles!) are soft. These motors are just not that delicate. “Forget about it”.

  2. Matt

    Hello All, this is my first posting anything.
    I have a 2008 Street Glide and I am planning on changing my oil for the first time, on my own. My question is this, at what mileage do I need to change the primary and trans? I’ve put 5000 miles on the bike since I had the local dealer do the 10,000 miles service oil change.

    • Customer Service Techs

      Hi, Matt. The service manual suggests changing your primary and transmission fluids every 10k miles, after your 1st 10k service. If the motorcycle sits for any long duration; should start with fresh fluids regardless of the mileage. Condensation can be a factor.