How much oil??? - Road Glide Forums
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post #1 of 18 (permalink) Old 05-04-2015, 08:37 AM Thread Starter
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How much oil???

I bought a 15 RGS with 700 miles on it. The dealer said they already did the 1K service with standard HD oil. So i put about 2k miles on it the last 2 months. The weather here in Tampa is getting hot so i decided to do an oil change with Mobile1 Vtwin 20/50. This is my first Touring bike with an oil cooler . I drained the oil and removed the oil filter. When I measured the amount of oil that drained out, it barely measured 3 Qts. Could there possibly be a Quart still in the oil cooler? I am not sure how much of the new synthetic I should add now? I am also wondering if there would be any issue with the synthetic oil mixing with the standard HD oil. Is there any different i need to do when changing oil on a bike that has an oil cooler to ensure all of the oil drains completely?
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post #2 of 18 (permalink) Old 05-04-2015, 08:49 AM
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The manual tells you to use 4 qts but don't do that. 3 1/2 qts is good but if you are not sure put in 3 and then add some as needed. The oil should be 1/2 way up on the dipstick this leaves room for the oil to expand when it is hot and it will help prevent oil from coming out the air filter.
The HD dealer used HD 20w50 syn 3 oil and it will mix fine with the left over oil that is in the bike.
I been using Mobil 1 V-Twin oil for years and I am happy with it.


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post #3 of 18 (permalink) Old 05-04-2015, 06:22 PM
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+1. I use 3.5 quarts.
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post #4 of 18 (permalink) Old 05-04-2015, 07:11 PM
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Quote:
Originally Posted by ironmark View Post
The manual tells you to use 4 qts but don't do that. 3 1/2 qts is good but if you are not sure put in 3 and then add some as needed. The oil should be 1/2 way up on the dipstick this leaves room for the oil to expand when it is hot and it will help prevent oil from coming out the air filter.
The HD dealer used HD 20w50 syn 3 oil and it will mix fine with the left over oil that is in the bike.
I been using Mobil 1 V-Twin oil for years and I am happy with it.
+ 2 . Put in 3qts , run a few minutes , then let it settle and measure and add as needed. As Mark said , only fill to the middle of the full area.
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post #5 of 18 (permalink) Old 05-09-2015, 04:25 PM
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The other quart is still in your engine. I use the Scavenger System to pull the last quart out. You get a complete oil change when you use the Scavenger Total Oil Change System.


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post #6 of 18 (permalink) Old 09-23-2015, 08:06 AM
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If you use the Scavenger or the other complete oil change systems, do you still use 3 1/2 or 4?
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post #7 of 18 (permalink) Old 09-23-2015, 09:17 AM
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I just did my 2015, Manual says add 3 run till hot and check to add as necessary, I used just less than 3 1/2 quarts the new dipstick shows both hot and cold engine levels this brought my level to full hot.

just my experience.
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post #8 of 18 (permalink) Old 09-23-2015, 12:50 PM
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I just did the 2nd oil change on my '15 yesterday. The first time I did it I put in 3.5qt & that was too much. I was getting oil drips oit of the air cleaner. Dealer said to go with 3 qt on next change, so thats what I went with yesterday. These new bikes are apparently very sensitive to the oil level. Halfway up the stick cold on sidestand & you should be fine.

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post #9 of 18 (permalink) Old 09-28-2015, 11:35 AM
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Three quarts and you are good.

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post #10 of 18 (permalink) Old 09-28-2015, 12:29 PM
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To the guys saying 3.5-4qts I think that is true for the older bikes but the 15s call for 3qts. I drained mine at operating temp with bike straight up and let it all drain out, filled w/ 3qts and it is right on.
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