Syn3 or Amsoil
Ultimate HDF Member
Joined: Apr 2006
Posts: 7,498
Likes: 19
From: East Alton, IL
I've been using Amsoil in all three holes until I put Redline Heavy in the transmission the last time. That is some evil looking crap and I saw no difference is shifting or tranny noise so I'm not using it the next time.
I had compression releases installed last month and the mechanic called me to show me how much carbon was on the heads and pistons. We were both surprised at how much there was after only 16,000 miles. He asked me what kind of oil I used and I told him Amsoil. He indicated that he sees that often with Amsoil. I think I'm switching to Mobil 1.
I had compression releases installed last month and the mechanic called me to show me how much carbon was on the heads and pistons. We were both surprised at how much there was after only 16,000 miles. He asked me what kind of oil I used and I told him Amsoil. He indicated that he sees that often with Amsoil. I think I'm switching to Mobil 1.
Road Warrior
Joined: May 2006
Posts: 1,276
Likes: 0
From: Top of Texas
I did amsoil 20 -50 M/C in motor,redline in tranny, drag specialties primary oil in primary. This from my local bike shop recomendation .Bike shop recomended mobil one vtwin for motor.I wanted Amsoil. These guys been building and services H/D s for many years.Harley recomends Syn 3 in all compartments, Amsoil recomends 20-50M/c in all compartments. The choice is up to you. Probably cant go wrong any way you go. All very good oils.
Road Warrior
Joined: May 2006
Posts: 1,276
Likes: 0
From: Top of Texas
I've been using Amsoil in all three holes until I put Redline Heavy in the transmission the last time. That is some evil looking crap and I saw no difference is shifting or tranny noise so I'm not using it the next time.
I had compression releases installed last month and the mechanic called me to show me how much carbon was on the heads and pistons. We were both surprised at how much there was after only 16,000 miles. He asked me what kind of oil I used and I told him Amsoil. He indicated that he sees that often with Amsoil. I think I'm switching to Mobil 1.
I had compression releases installed last month and the mechanic called me to show me how much carbon was on the heads and pistons. We were both surprised at how much there was after only 16,000 miles. He asked me what kind of oil I used and I told him Amsoil. He indicated that he sees that often with Amsoil. I think I'm switching to Mobil 1.
Jim,
Can you expand on the compression release install? I ride old dirt bikes so I know what your talkin' 'bout, just curious about the application.
Ultimate HDF Member
Joined: Aug 2008
Posts: 5,413
Likes: 17
From: eastern oklahoma
the problem i have with amzoil is that there are like eleven dealers on the planet. thanks anyway, i want to use an oil that i can find anywhere. royal purple 20-50 is what i'm running in the crankcase and primary, and the royal purple 75-140 in the trans. a perfect combo, although royal purple almost doubled in price in my area lately, so i got five quarts of syn 3 for my next change. the royal purple i can get at o'reileys, pep boys, auto zone, all of the major chains. but with syn 3 at 9 bux a quart vs 17 a quart for royal purple. and a huge difference it made. runs noticeably cooler, and the trans almost shifts as well as a jap bike. very quiet and smooth, a click rather than a clunk
Grand HDF Member
Joined: Mar 2007
Posts: 4,928
Likes: 285
From: Edmond Oklahoma
I quit using synthetic in the primary, it made the clutch harder to use in the friction zone. It seem to bite to hard. A 10w40 oil works pretty good, but I've wondered how a gear oil would work.
Beary
Beary
Ultimate HDF Member
Joined: Aug 2007
Posts: 8,907
Likes: 69
From: Wesley Chapel Fl.
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Cruiser
Joined: Mar 2007
Posts: 152
Likes: 0
From:
I've heard that even Harley is saying not to use Syn-3 in the primary. I used to run Syn-3 in all three holes, but started to get clutch slippage and wear. I heard that Syn-3 is too slippery for the clutch and the primary doesn't require such sophisticated oil. I was going to switch to the HD Formula+ and got talked into the RedLine regime by the HD dealer.
Clutch action is MUCH better with RedLine MTL (now RedLine Primary oil) in the primary. Not much difference with the Shockproof in the trans and the engine ran fine with Syn-3 and RedLine. Considering going to Mobil-1 for reputation and cost.
2003 Heritage
