HD Syn mileage between changes
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Tourer
Joined: Aug 2005
Posts: 491
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From: New York City Area
HD Syn mileage between changes
A question Im thinking about as my 05 Raod King with 8800 miles, next dealer service is 10K I have synthetich HD ina all 3 cavaties, had oil change at 6600 miles so it will get done again at 10K or 10.5K is that too long between syn changes? 3K to 3.5K I take short trips and dont abuse the bike its stock an the longest trip Ill take will be tomorrow NJ Roar To The Shore" 150 miles there I prefer tpo wait for the 10K service to get it changes is that safe what ya guys think? THanks Bill
Road Warrior
Joined: Dec 2005
Posts: 1,817
Likes: 4
From: MONTGOMERY,AL.
RE: HD Syn mileage between changes
With lotsof local stop and go I would ot exceed 3,000 on syn 3 which is not a very good oil. Mobil1 v-twin, Amsoil,or Royal purple is much better and cost no more and in some cases less.
Road Master
Joined: Aug 2005
Posts: 765
Likes: 0
From: Alleghany Co., NC and SW Florida
RE: HD Syn mileage between changes
Don't agree that synIII is not a good oil. Just that it is a semi syn, expensive and not as good as other available oils like Mobile One 15/50 which costs about half as much. In the same price class as synIII BUT quality class with the Mobile one are Amsoil and Redline and Mobile One MC specific oil. All of them are better IMHO than SynIII and usually cheaper. Three to five K is OK as an interval IMHO. Some say longer but I think the filter is about done at 5K and if you change that with the mess etc, might as well change the oil.
Also would advise using gear oil in the transmission like Redline HeavyDuty Shockproof or Amsoil gear oil. 10/30 or 10/40 dino oil or Type F trans fluid or Redline MTL are fine in the Primary. SynIII works but why spend so much when a buck or two will do there.
EZ
Also would advise using gear oil in the transmission like Redline HeavyDuty Shockproof or Amsoil gear oil. 10/30 or 10/40 dino oil or Type F trans fluid or Redline MTL are fine in the Primary. SynIII works but why spend so much when a buck or two will do there.
EZ
Outstanding HDF Member
Joined: Mar 2007
Posts: 2,032
Likes: 9
From: Alabama
RE: HD Syn mileage between changes
Agree with EZ- Syn 3 may not be "the best" synthetic on the market, but it is in no way a bad oil. If it were a bad oil H-D wouldn't recommend it since they have to warranty your engine, tranny, and primary.
Syn3 can easily go 5000 miles between changes, so get your money's worth before draining it out...
Syn3 can easily go 5000 miles between changes, so get your money's worth before draining it out...
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