How Often?
Road Master
Joined: Feb 2005
Posts: 785
Likes: 1
From: Harford County, Maryland
RE: How Often?
my Road King has 30k on it, and I change Eng, Trans, and Pri every 2500 -3000 (chg all 3bikes at the same way). They all come out looking almost as clean as the day I changed them (I suck at keeping up with changes on my truck though)
HD syn in the engine
RedLine in the Trans
HD Trans oil in the primary
HD syn in the engine
RedLine in the Trans
HD Trans oil in the primary
Tourer
Joined: May 2007
Posts: 499
Likes: 0
From:
RE: How Often?
Regarding some of the differences between dino and synthetic oil. I have a brother-in-law who works for a small oil company that does a lot of testing of oils for many other companies. I asked him about the dino vs synthetic oil controversy. He said that synthetic oil will last longer with fewer impurities than dino oil. You can change your oil less often with syn oil over dino. But, if you change your dino oils on a regular basis you will be just fine. The parafin-based oils will need to be replaced more often than others. In an older engine that has always used dino oils if you switch to synthetic you may well see leakage because the syn oil is more slippery and will find its way in the crevices of the crap left over from the gunk of the dino oil. Otherwise, no harm. He said he wouldn't change because of that. The most important thing with the dino oils is to change them on a regular basis so you can keep the impurities from damaging the engine parts. The oil is relatively cheap enough that it is just good insurance.
Cruiser
Joined: Jun 2007
Posts: 241
Likes: 0
From:
RE: How Often?
I do intervalls as per the harley manual,engine at 5k,...primaryat 10k,..and trans at 20k.
engine gets syntheticMOTOR oil(its a motor) ,Primary and trans get synthetic GEAR oil(they are gears). pretty easy
engine gets syntheticMOTOR oil(its a motor) ,Primary and trans get synthetic GEAR oil(they are gears). pretty easy
Tourer
Joined: Jul 2007
Posts: 464
Likes: 1
From: NoCal
RE: How Often?
Engine - every 5K, Mobil V-Twin and previously Mobil 1 15-50W
Primary - every 10K, Mobile MX4T
Tranny - every 10K,Mobile 75-90W
100k miles in total on my currentbikes with these oils and no problems
Primary - every 10K, Mobile MX4T
Tranny - every 10K,Mobile 75-90W
100k miles in total on my currentbikes with these oils and no problems
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Tourer
Joined: Mar 2007
Posts: 311
Likes: 1
From:
RE: How Often?
Thank for the quick replys. My practice was to change the primary and tranny fluid at every other oil change. Now that I am using synthetics like most here, I'll continue the practice, but extend the intervals. Right now I have Syn 3 in the engine and primary and Belray in the tranny. I'm switching to Amsoil for the engine at the next change. Thanks again.
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