HD standard oil or HD syn or Mobil 1 syn - Road Glide Forums
Fluids and Lubricants discussion of all fluids and lubricants

View Poll Results: which engine oil
Standard HD oil 9 8.91%
HD synthetic 13 12.87%
Mobil 1 synthetic 47 46.53%
other 32 31.68%
Voters: 101. You may not vote on this poll

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post #1 of 22 (permalink) Old 09-29-2014, 11:26 PM Thread Starter
K.I.HSr's Avatar
Join Date: Sep 2014
Location: Garage
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HD standard oil or HD syn or Mobil 1 syn

I just purchased my 2015 FLTRX a few weeks ago and I'm looking for advice as which way to go with engine oil. This is my first HD after years on my Hayabusa. Thanks!

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post #2 of 22 (permalink) Old 09-30-2014, 12:29 AM
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I did have the Pre-Paid service for the first 60K miles. But I had them changed to full synthetic oil at the first oil change. Then when it ran out, I could not see buying another 30K of the service. I could do it myself. I love the synthetic oil over the Dino oil. Longer between oil changes.

I use Harley Syn, Mobil V-Twin and Mobil 1. Depends on which has the best deal.
I first started using Synthetic oil with my '98 Ultra. Oil lasts longer.

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Last edited by RoadGlideRider; 09-30-2014 at 07:41 PM.
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post #3 of 22 (permalink) Old 09-30-2014, 09:35 AM
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I got free oil changes with the Harley Syn-3 for 2 years, I have now switched to Amsoil

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post #4 of 22 (permalink) Old 09-30-2014, 10:44 AM
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Been using Mobile 1 V-twin syn oil for years. There are Other synthetics out there that are just as good , but not readily available like Mobile 1.

2010 FLTRX , Stage 1, 13" Madstad, Mono tubes, SuperShox, Heritage style bars. Alpine CDE-HD149BT,Soundstream Picasso Nano Series PN4.520 , 5X7 and 6.5 Infinity Kappa speakers
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post #5 of 22 (permalink) Old 09-30-2014, 12:13 PM
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Using Amsoil 2 years great luck
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post #6 of 22 (permalink) Old 09-30-2014, 12:25 PM
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PLEASE do a search. You'll be ready till next spring!!!

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2011 FLTRX 103 Sedona Orange
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post #7 of 22 (permalink) Old 09-30-2014, 12:38 PM
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Location: south Jersey
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Oil is like ice cream. So many different choices.
Buy what you are comfortable with, what you think is fairly priced and what is required.
Oil is the life blood of your engine. Don't save a buck because it might cost you later.
My choice is Red Line Oil in the engine and Red Line Shockproof in the trans. Any good oil for the primary, but I do use Red Line for that also.

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post #8 of 22 (permalink) Old 09-30-2014, 01:12 PM
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tons of opinions. Whats easiest available to you??

I have used AMSOIL, HD Syn3, Mobil, all similar results. (Amsoil in the 'busa)

Common suggestion is...use a synthetic

Sometimes to achieve the impossible,you have to try the absurd!
2012 FLTRU

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post #9 of 22 (permalink) Old 09-30-2014, 03:47 PM
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Location: Northern Va
Posts: 127
HD Standard oil or HD Syn 3 or Mobile 1

I have used syn 3, and Ams oil. Ran nothing but Syn 3 in Night train and ran it hard as hell with no issues. put Syn 3 in FLTRX at first fluid change, but have recently switched to Ams oil. I will be going back to Syn 3. For some reason I seem to burn Ams oil, and verified no leaks.

Have never used mobile 1 on HD, but used it religiously in my Vette.

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post #10 of 22 (permalink) Old 09-30-2014, 04:01 PM
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I was using HD syn3 up until last oil change (approx 36k miles). I switched to mobil1 Vtwin because I can get it cheaper. So far so good.

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