Change Older Bike's Oil Type?
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Joined: Oct 2008
Posts: 24
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From: Minneapolis
Change Older Bike's Oil Type?
WOW, I've been reading for hours about all the oil options....I thought my car was confusing! The 89 Heritage I just picked up, the guy has run DH Dino in all 3 holes since new.....HD 20/50 engine, HD primary oil, and HD transmission oil. I have to give a hats off to the previous owner, he is old school, and very good at it, my dilemma is being a synthetic guy, would I be opening a can of worms switching over to Amsoil on a 20 year old bike?
It's been re-worked 10k ago, has no leaks, and runs and shifts out well. After a long hard ride, I do get some rocker noise, which I know can be common on the Evo's that are cammed, and if I went out to start it now, the engine would be quiet as a mouse and also on shorter rides.
I also have Jim's roller rockers, and adjustable push rods, Crane ignition...
Any thoughts would be awesome, It's due for a change before the winter.
WB
It's been re-worked 10k ago, has no leaks, and runs and shifts out well. After a long hard ride, I do get some rocker noise, which I know can be common on the Evo's that are cammed, and if I went out to start it now, the engine would be quiet as a mouse and also on shorter rides.
I also have Jim's roller rockers, and adjustable push rods, Crane ignition...
Any thoughts would be awesome, It's due for a change before the winter.
WB
Seasoned HDF Member
Joined: Dec 2004
Posts: 11,068
Likes: 1,473
From: Texas! Ya mean there's someplace else?
If you wanna try the synthetic you shouldn't have any problem, especially since it's been redone 10k ago. In my garage that makes it about 6 months old! If you happen to get more top end noise and it bugs you, just switch back to a dino. I'd go for something less expensive than the HD; maybe Valvoline VR-1 20w-50.
Big Kahuna HDF Member
Joined: Feb 2006
Posts: 23,881
Likes: 34
From: USA
+1 I wouldn't change it either. If you want a dino oil with a better additive pack try Brad Penn 20w50 racing oil if you can find it. But I would not go syn in a bike older than about mid 1990's.
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