Harley heavy synthetic gear oil

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    Part Number 62600094

    TESTED-CERTIFIED for use in Harley-Davidson® transmission and primary chaincase applications. Exclusively engineered for Harley-Davidson® Motorcycles, this Heavy Synthetic Gear Oil is intended for use in extreme temperature environments (desert heat or cold weather), frequent two-up riding and heavy load riding applications.

    • Dual viscosity (SAE 80W-140) heavy weight gear & primary oil
    • Developed with proprietary additives and pure synthetic base stock so it flows better at cold start-up then in high temperatures viscosity behaves like a 140 weight oil to provide maximum protection
    • Formulated to maintain the proper coefficient of friction for clutch operation and provide superior lubrication for the primary chain drive
    • Provides specialized lubricity for the anti-wear requirements of transmission gears across a wider temperature range than mineral based oil
    • Approved by Harley-Davidson® for use in all stages of transmission and primary chaincase life
    • Not for use in the crankcase as a motor oil

    All H-D® Transmissions and the following primary chaincase applications: ‘71-later XL, ’83-84 XR1000, 08-13 XR, and 84-later Big Twin models. Not for use in 02-17 VRSC™ or 15-later XG models.

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Harley heavy synthetic gear oil

Started by Slider1950, May 17, 2019, 02:50:44 PM

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Interesting.  I knew they had it but hadn't read their recommendations til now.   It appears it is now their recommended syn chain case lube.  I wonder if Formula One is going away?


98fxstc

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Norton Commando

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Remember, you can sleep in your car, but you can't drive your house.



I don't understand how any "gear oil" could be used in the primary under cold "extreme temperature environments."

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Ancient

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$19.95 a quart on the moco site. I don't know what dealers are charging for it. No thanks.

Isn't it a bit ironic that this product advertised as a use in tranny and primary lube, pops up shortly after all the transfer issues do?


Don D

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75W-90 gear oil is about the same viscosity as 10W-40 engine oil. You do not want a high viscosity oil in the primary.


Quote from: Ancient on May 18, 2019, 07:04:58 AM
$19.95 a quart on the moco site. I don't know what dealers are charging for it. No thanks.

Isn't it a bit ironic that this product advertised as a use in tranny and primary lube, pops up shortly after all the transfer issues do?

Yeah, I thought about the same. Maybe the long range plan is to put a tube between the two and just keep one oil level......     If they used the right lubricant, that could do that.

I've been using Bel-Ray gear saver 75wt for years in the primary of my two bikes. Works great, clutch loves it. HD transmissions have lived running 20w50 synthetic oil, so they don't really need super heavy weight lube. Although motor oil isn't the best solution.


Don D

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An oil about the same viscosity as motor oil with hypoid additives is fine however. Not a shockproof heavy fan


No Cents

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just me thinking out loud here.
In my opinion the transmission has gears meshing in it, and the primary that has clutch disks in it, each need a specific lube for each job their doing.
   I've ran Spectro 85W in my primary with great clutch engagement, and I've ran Lucas synthetic 75w140 gear oil in my tranny for years...with excellent results.
   The new Harley 80w140 lube might be an option for the tranny...but I would have a hard time putting it in the primary. I'd want a product more specific for it.

08 FLHX my grocery getter, 124ci, wfolarry 110" heads, Burns pipe, 158/152 sae


Don D

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Agreed but a light hypoid can do great in both. One without posi additives.
Here is one multipurpose oil that will work in both.
Maybe that is Harleys fix on the M8, shared sump?
https://www.schaefferoil.com/primary-lube.html


Norton Commando

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Quote from: kd on May 18, 2019, 06:36:39 AM
Quote from: Norton Commando on May 18, 2019, 06:33:34 AM
Quote from: 98fxstc on May 17, 2019, 05:44:31 PM

check reply #4 in particular, from Maddo Snr

https://harleytechtalk.com/htt/index.php?topic=108075.msg1286771#msg1286771


Maddo Snr's response relates to putting 80W 140 synthetic gear oil in the primary, not the transmission.

I believe 98's post was in response to my statement in reply #1 that Harley is recommending it for primary use as well as gear box.

Oops, you're correct, my mistake.

Jason

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Moparnut72

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Harley's description of this lubricant states that the viscosity is lower at cold temperatures and higher at operating temp. Sounds good but I would be hesitant to put it in my bike even though I wouldn't mind getting it a bit quieter. I am afraid it might mess up clutch function.
kk


Don't Sportsters use the same oil for primary and transmission?


Slider1950

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Well my thinking is to use the new HD 80w 140 in my M8 trans and continue to use Formula+ in the primary. That way if I ever get trans to primary migration I know the new HD gear oil won't adversely affect my clutch. At least that is my thinking as of now.



Hilly13

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Just because its said don't make it so



I think I paid $18 for Spectro tranny gear lube. They are not giving any of that stuff away anymore.

We learn from history that we do not learn from history


All of the syn gear oils are priced high and at similar levels.   

Harley heavy synthetic gear oil


Quote from: Slider1950 on May 18, 2019, 06:23:26 PM
Well my thinking is to use the new HD 80w 140 in my M8 trans and continue to use Formula+ in the primary. That way if I ever get trans to primary migration I know the new HD gear oil won't adversely affect my clutch. At least that is my thinking as of now.

See reply #18.  It looks like Formula Qne is being discontinued and the MOCO is discounting stock to get rid of it.


$20 a year for trans lube isn't horrible.
Some guys spend that in an hour, drinkin...

Ignorance is bliss, and accuracy expensive. How much of either can you afford?


I had local dealer do the 1000 mile on my new limited just last Tuesday, a week ago. I told service adviser SYN3 in primary and engine and the new 80/140 gear in the tranny. The service person did not know of it! I went up front got a quart and handed it to him, told him 'here it is and it's what I want in my tranny'.
Seems fine, I have ridden a thousand miles. So now I can (or likely not) buy Harley transmission oil.
I've use Mobil 1 20/50 in all 3 holes for years now. I change primary (dirtiest oil case on our bike) and engine at 4000 miles, tranny at 20,000 or so.

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Dan89flstc

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Quote from: kd on May 19, 2019, 06:41:48 AM
All of the syn gear oils are priced high and at similar levels.   
Harley heavy synthetic gear oil

If you look at syn gear lubes in local auto parts store, you will find that  75w90 is about half the price of 75w140, same brand.

Anybody here wearing out gears by using 75w90?

1989 FLSTC 2016 FLHR 2019 FLHT
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What oil is best for Harley transmission?

Answer: For any Harley Twin-Cam engine, we highly recommend using AMSOIL Synthetic 20W-50 in “all three holes” (as they put it) for two essential reasons. Update: AMSOIL now offers dedicated fluid for Harley Davidson primary chain-cases and transmissions.

What weight is Harley gear oil?

Our answer: It is perfectly acceptable to use 75W-140 gear oil in Harley-Davidson transmissions. But, do consider that 75W-140 is much thicker than oils typically used in Harley transmissions. For instance, AMSOIL V-Twin Synthetic Transmission Oil is an SAE 110 gear oil.

Does Harley

Ans: For all weather conditions, Harley Davidson recommends SAE 20W50 synthetic oils the Twin Cam engine. But if you live in a region where it gets below 40F, you should get something that maintains SAE 10W40 standards. Similarly, SAE 60 H-D is suggested for higher temperatures above 80 degrees.

Can I use 20 50 oil in my Harley transmission?

Amsoil recommends 20W-50 synthetic V-twin motorcycle oil in the engine, transmission and primary chaincase on most Harleys.