Is harley primary oil a synth?
Thread Starter
|
Intermediate
Joined: Jan 2009
Posts: 33
Likes: 0
From: upstate n.y. near Albany
Is harley primary oil a synth?
hey guys..time for me to adjust primary chain, clutch, and change primary fluid. I know harley makes a primary oil..is it 10/40, 20/50wt? fossil or synth. scoot is a 06 EGC. my shovelhead doesn`t use oil in primary..any good substitute for harley oil...i use amsoil in crank..gear oil in tranny..
thanx, Rob
thanx, Rob
Outstanding HDF Member
Joined: Dec 2007
Posts: 2,415
Likes: 197
You can use almost any 10W40 motor oil or even ATF in the primary. All you are doing is lubeing the drive chain and cooling the clutch. There's no sense in spending the extra $$$$ for a synthetic there. I use ATF in mine (Dextron) and haven't had any problems. Before dising the ATF, consider the cluth pack makeup. It's almost identical to an auto transmission clutch pack, and the thinner fluid has less drag than a heavier weight lube.
Grand HDF Member
Joined: Sep 2005
Posts: 4,890
Likes: 73
From: MA
I use Castrol GTX 10-40. Using any synthetic is just a waste of $$$$. Harley's Formula+ is dino oil and a good choice for the primary, but is still more expensive than any other dino oil you can use.
Last edited by soos; May 2, 2009 at 08:05 AM.
HDF Community Team
Joined: Dec 2005
Posts: 5,426
Likes: 2,623
From: NC USA
The primary fluid that HD sold for years is nothing more than hydraulic fluid. That's right, just like you put in a farm tractor. ATF is totally different, but works well, just a bit thinner, may transmit a little more noise and disspates heat quicker.
I haven't seen any the last few times I was in a dealership and I don't know if they even still offer it. All they have here now is 20-50 syn for all 3 holes.
I haven't seen any the last few times I was in a dealership and I don't know if they even still offer it. All they have here now is 20-50 syn for all 3 holes.
Thread
Thread Starter
Forum
Replies
Last Post
