Running Synthetic-how often change tran/clutch

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Running Synthetic-how often change tran/clutch - 5/7/2008 11:42:44 AM

fatboymark05

Posts: 33
Joined: 3/1/2008
Status: offline Hi,
I am running HD Syn3 in all 3 holes....manual says change tran and Clutch every 5k...does this still hold true running synthetic??

Thanks

Post #: 1

RE: Running Synthetic-how often change tran/clutch - 5/7/2008 11:57:04 AM

liltrk

Posts: 1441
Joined: 1/29/2006
From: London, Canada
Status: offline I would still change at the recommended intervals. I know it is supposed to last longer but its such a small quantity why not change it? Also, you might avoid warranty issues.

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Post #: 2

RE: Running Synthetic-how often change tran/clutch - 5/7/2008 2:27:25 PM

KBFXDLI

Posts: 8062
Joined: 2/4/2006
From: Cleveland, Ohio USA
Status: offline
Engine 5000.
primary 5000

trans...drain that $hit out and get some synthetic 75w90 gear oil and run it 15000

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06 FXDLI

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(in reply to fatboymark05)

Post #: 3

RE: Running Synthetic-how often change tran/clutch - 5/7/2008 6:22:32 PM

tobyhd1

Posts: 322
Joined: 10/6/2007
From: canton ny
Status: offline +1.

(in reply to KBFXDLI)

Post #: 4

RE: Running Synthetic-how often change tran/clutch - 5/14/2008 10:47:11 AM

RonB

Posts: 105
Joined: 4/5/2007
Status: offline
Please inform all dealership personnel that the extended service intervals for SYN3 have been approved
through the Harley-Davidson Motor Company are as follows:
All Big Twin:
Crankcase: Replace after first 1,000 break-in, then every 5,000 thereafter (unchanged)
Primary: Replace after first 1,000 break-in, then every 10,000 thereafter or prior to winter or
extended storage periods
Transmission: Replace after first 1,000 break-in, then every 20,000 thereafter or prior to winter or

(in reply to fatboymark05)

Post #: 5

RE: Running Synthetic-how often change tran/clutch - 5/18/2008 6:50:42 AM

WireDawg

Posts: 801
Joined: 11/3/2007
From: The State of Harley
Status: offline
quote:

ORIGINAL: RonB

Please inform all dealership personnel that the extended service intervals for SYN3 have been approved
through the Harley-Davidson Motor Company are as follows:
All Big Twin:
Crankcase: Replace after first 1,000 break-in, then every 5,000 thereafter (unchanged)
Primary: Replace after first 1,000 break-in, then every 10,000 thereafter or prior to winter or
extended storage periods
Transmission: Replace after first 1,000 break-in, then every 20,000 thereafter or prior to winter or

While the above may true..........changing ALL THREE lubricants at least once a year (regardless of mileage) is exceptionally cheap insurance for a machine that costs $ 20K. I can purchase my Mobil1 VT, Redline SP, HD 5 micron filter, O-rings & primary gasket for under $100.00 .

Of course oil changes are ALWAYS mileage contingent.........I change mine every 3k.

Just my unsolicited $ .02 !!!

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Post #: 6

RE: Running Synthetic-how often change tran/clutch - 5/18/2008 11:10:01 AM

Skivvy9r

Posts: 168
Joined: 11/25/2005
Status: offline
quote:

ORIGINAL: RonB

Please inform all dealership personnel that the extended service intervals for SYN3 have been approved
through the Harley-Davidson Motor Company are as follows:
All Big Twin:
Crankcase: Replace after first 1,000 break-in, then every 5,000 thereafter (unchanged)
Primary: Replace after first 1,000 break-in, then every 10,000 thereafter or prior to winter or
extended storage periods
Transmission: Replace after first 1,000 break-in, then every 20,000 thereafter or prior to winter or

For 2008, these are the service intervals listed in the owner's manual, regardless of fluid type, synthetic or dino.

(in reply to RonB)

Post #: 7

RE: Running Synthetic-how often change tran/clutch - 5/18/2008 1:45:31 PM

gs34doc

Posts: 182
Joined: 4/3/2008
Status: offline No matter if you run synthetic or dino....... oil and filter changes are STILL the absolute cheapest insurance for your baby that you can provide.
And, whatever you do, don't neglect the air filter in your change. An intake system that is restricted by dirt/debris, or a hole/tear in your filter can allow contaminates to enter the cylinders and wipe out an engine in an amazingly short period of time.

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Post #: 8

RE: Running Synthetic-how often change tran/clutch - 5/20/2008 9:59:56 PM

txfxstrider

Posts: 2244
Joined: 4/14/2006
Status: offline
quote:

ORIGINAL: RonB

Please inform all dealership personnel that the extended service intervals for SYN3 have been approved
through the Harley-Davidson Motor Company are as follows:
All Big Twin:
Crankcase: Replace after first 1,000 break-in, then every 5,000 thereafter (unchanged)
Primary: Replace after first 1,000 break-in, then every 10,000 thereafter or prior to winter or
extended storage periods
Transmission: Replace after first 1,000 break-in, then every 20,000 thereafter or prior to winter or

Exactly.

Some here say change more frequently, and you won't hurt it by doing so but it is not necessary or helpful. The exceptions are if you ride in extremely dusty conditions or do a lot of idling, or other than "normal" riding.

I have been riding Harleys for over thirty years and probably several hundred thousand miles and I have always pretty much followed the moco recommendations and used Harley oil without ever having an engine or transmission problem.

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1996 FXSTC

(in reply to RonB)

Post #: 9

RE: Running Synthetic-how often change tran/clutch - 5/21/2008 8:11:27 AM

splitting_lanes

Posts: 63
Joined: 5/8/2008
Status: offline RonB and txfsxtrider +1

5k engine
10k primary
20k transmission

(in reply to txfxstrider)

Post #: 10

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