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Primary oil change

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Old May 10, 2013 | 09:07 AM
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Default Primary oil change

I recently bought an 09 heritage softail classic and I want to change the primary oil. Any suggestions on which oil to use and exactly how much I need to add? I am new to the biking world, so I could use some suggestions! Thanks guys!
 
Old May 10, 2013 | 09:40 AM
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Make sure you remove the derby cover before you drain the oil out. It takes a 27 mm torx, a lot of people strip the screws removing them.
I use HD formula plus which work fine for me, the amount need is in your manual.
 
Old May 10, 2013 | 09:43 AM
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Here's a can of worms being opened. I would use whatever synthetic you like and 2 quarts is more than enough. Should come up to just shy of the bottom of derby cover (removed). I am basing that off my TC88 so owners manual will give more info.
 
Old May 10, 2013 | 09:56 AM
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I went with HD formula plus. No problems with the original stuff so I stuck with it.
 
Old May 10, 2013 | 09:56 AM
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To avoid stripping the bolts on the derby cover, I replaced mine with allen heads when I was changing the primary.
 
Old May 10, 2013 | 10:09 AM
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The '09 takes 38 ounces of oil in the primary. Earlier years take 32 ounces. Check your manual to be sure on the amount. I forget what year they changed, but I do know my '09 RK takes 38 ounces.

I use Shell Rotella T 15W-40 in the primary. Just regular motor oil is fine for the primary, synthetic is not necessary.
 
Old May 10, 2013 | 10:25 AM
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ATF works just fine.....
 
Old May 10, 2013 | 07:17 PM
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Originally Posted by Arizona

I use Shell Rotella T 15W-40 in the primary. Just regular motor oil is fine for the primary, synthetic is not necessary.
I use Pennzoil 10W40 in my primary........it works just fine.
 
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Old May 10, 2013 | 07:54 PM
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I have formula plus in mine now. Seems to work good. I might try mobil 1 20w50 next time.
 
Old May 10, 2013 | 08:01 PM
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Originally Posted by harleydavis
I use Pennzoil 10W40 in my primary........it works just fine.
If the Penzoil 10w40 you are using in the primary is automotive oil and it is labeled energy conserving oil it should not be used in the primary.
 



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