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Touring Models Road King, Road King Custom, Road King Classic, Road Glide, Street Glide, Electra Glide, Electra Glide Classic, and Electra Glide Ultra Classic bikes.
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Old 05-21-2010, 09:26 PM
tenn.vol. tenn.vol. is offline
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Default How much does COLD/HOT oil expand?

Does Dino oil expand more than sync oil?

My 97 RK had 2 marks on the dip stick, one for cold and one for hot.
My 08 RK has only one mark HOT, and when I check the oil cold, it
sits right at the FULL HOT mark........Is it overfull?? Tenn.Vol.
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Old 05-21-2010, 10:19 PM
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Don't know about the expansion rate between dino and sync oils, but I will say that your engine is overfilled. The level should be in the middle of the dipstick when cold.
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Old 05-21-2010, 10:21 PM
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Yep. Sounds like you have a tad too much in there.
I've seem mine expand more that expected once hot though, even when the cold level was correct.
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Old 05-21-2010, 10:28 PM
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Quote:
Originally Posted by tenn.vol. View Post
Does Dino oil expand more than sync oil?
If it does it's not enough to notice on a dipstick.

Quote:
Originally Posted by tenn.vol. View Post
My 97 RK had 2 marks on the dip stick, one for cold and one for hot.
My 08 RK has only one mark HOT, and when I check the oil cold, it
sits right at the FULL HOT mark........Is it overfull?? Tenn.Vol.
The cold oil check is not very accurate, where is the oil level when it's hot?
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Old 05-22-2010, 07:36 AM
1flhtk4me 1flhtk4me is offline
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Quote:
Originally Posted by Dionicio View Post
The level should be in the middle of the dipstick when cold.
That's were mine is when cold.
Will raise to almost full when hot.
I think dino and syn. will expand about the same.
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Old 05-22-2010, 11:33 AM
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Quote:
Originally Posted by NoCoLoco View Post
If it does it's not enough to notice on a dipstick.


The cold oil check is not very accurate, where is the oil level when it's hot?

Just curious: What actually makes the "cold" level less accurate than the "hot" level.
Been checking mine both ways several times and found no difference between the two accuracy-wise. Mostly check 'em cold now and halfway between the cold and hot marks is always dead on.
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Old 05-22-2010, 11:52 AM
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I'm curious as well. It almost seems like it'd be less so on the hot check?

However I don't see any mark for cold check on my FLH. (My 04 had a cold check line) The HD mailer that just arrived Thursday discusses a problem with over-filled FLH's. I don't have the article here now.
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Old 05-22-2010, 11:55 AM
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Quote:
Originally Posted by Leftcoaster View Post
Just curious: What actually makes the "cold" level less accurate than the "hot" level.
Been checking mine both ways several times and found no difference between the two. Mostly check 'em cold now and halfway between the cold and hot marks is always dead on.
Can't answer You question on the difference on the hot/cold check, but when I change the oil on My 08UC I refill with 3-1/2 qts of oil. This brings the level up to center between the add and full mark. after a warm up ride, it comes up to full hot mark.
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Old 05-22-2010, 10:42 PM
tenn.vol. tenn.vol. is offline
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I think thats what I will do, pull a 1/2 qt. out and from now on at change just add
3 and 1/2 qts. But I have already blown my "O" rings out of the push rods covers.
I sucked some oil today before we rode to Raleigh, NC. and it blew very little out
of the tubes. Tenn.Vol.
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Old 05-26-2010, 08:17 PM
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Quote:
Originally Posted by Leftcoaster View Post
Just curious: What actually makes the "cold" level less accurate than the "hot" level.
Been checking mine both ways several times and found no difference between the two accuracy-wise. Mostly check 'em cold now and halfway between the cold and hot marks is always dead on.
The owner's manual says:
"Oil level cannot be accurately measured on a cold engine."
That leads me to believe the cold check is just a pre start up inspection to ensure there is a sufficient amount of oil so you don't damage your motor when you start it.
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Old 05-26-2010, 08:17 PM
 
 
 
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