20000 miles?
Road Master
Joined: Jan 2011
Posts: 855
Likes: 6
From: Riverside, Ca.
Now don't jump on me (all you other posters), I'm just writing what I was told by my friend ___. He is one of the HD mechanics that travels the country over to maintain all the demo bikes - and of course, fix them. I told him my bike came with syn oil used by the previous owner. He says forget syn oil. No need. He's a Castor oil guy. Told me not to say where that info came from, but to switch back even if syn has been burned for the past 8k miles. Ok, let the jumping begin anyway...
Elite HDF Member
Joined: Dec 2007
Posts: 4,271
Likes: 29
From: Green Country,Oklahoma
I have acually heard that many times from people in the business that don't make a dime off what oil you use,take the synthetic out of your bike.I have not stopped using it yet in the motor but had to take it out of the transmission due to leaks.The leaks did stop when I went to regular gear oil.
Elite HDF Member
Joined: May 2006
Posts: 3,927
Likes: 5
From: Midwest
Exactly! It's not going to HURT anything, so form your own opinion.
Tourer
Joined: Jul 2007
Posts: 423
Likes: 5
From: Sunshine state.
I switch...
...all of my bikes, past and present to syn. at 1000 miles. Let the dealer do the 1000 mi. as it was part of the purchase deal on my latest bike. Went with their syn 3, then put my usual Mobil 1 products in at 3500 mi. My oil pressure always drop down from 32lbs. to 28lbs. going down the road, when I go from dyno to syn. Also, the dang things always get a bit more valve-train noise when doing so.
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