Trans oil

Start oil threads here so they can be ignored and/or ridiculed by most of us (except for those hardcore few that live for that kinda stuff).
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Here's the place for you to debate what oil is best. Post your oil related topics her so we don't clutter up the other sections. Most people avoid oil threads like the plague.
hotflash44
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Re: Trans oil

Post by hotflash44 » Thu Jul 13, 2017 8:35 am

Bilgekeeldave not trying to dispute what your saying about the old British cars,i have had several in the day. but i cant remember a American made transmission that ever used engine oil. Not sure in the olden days people other than some engineers knew much about gear pressure/sheer. The oil experts say that the gears actually slice up the molecules over time, and cause the oil to become less effective. Thats why modern transmission oil was invented. The above is why some Uralistas have trouble wrapping their brains around the concept of 20/50 oil in everything ,but Ural has done this for years, go figure!
2016 gear up asphalt grey, name Seryy Medved ,Air America CIA circa 1967/8 Vung Tau Viet Nam USS Tutuila ARG-4 (AND JUST A TOUCH OF AGENT ORANGE!)

GregAus
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Re: Trans oil

Post by GregAus » Sat Jul 15, 2017 11:17 pm

Ural hasn't recommended 20W50 for that long. Original specs were for Soviet oils that were 8 Centistoke (at 100˚C) in winter and 12 Centistoke (at 100˚C) in summer, equivalent to SAE20 and SAE30. Later they recommended SAE20W30. CSMI, the original Ural importer to the US was probably the first to recommend 20W50 in engine and gearbox. (Probably because BMW used 20W50 and "everyone" knows that Urals are copies of BMWs).

Since then almost everyone has recommended 20W50 in both engine and gearbox with the exception of the previous German importer Haubrich who recommended 80W90 in the gearbox. It seems that the COC in the UK are also recommending 75W85 or 75W90 in the gearbox. Two-smoke motocrossers often run ATF in their gearboxes due to the wet clutch and it works well and has a viscosity of generally 7-8 Centistoke (at 100˚C). Looking online most gear oils 75W90 and 80W90 have a viscosity of 14-15 Centistoke (at 100˚C). Redline MTL 70-80 only has a viscosity of 10.6 Centistoke (at 100˚C).

Using gear oil won't hurt your gearbox, except in increased fuel consumption and additional cost, but it probably won't help it except psychologically. Me I run 15W40 diesel oil in both engine and gearbox, changing engine at 2,500 km in the M-63 (slingers only) and 5,000 km in the M-67 (oil filter and slingers). Gearbox oil and FD oil is changed at 5,000 km. The manual says 10,000 km for the FD, but it works hard and it's just as easy to do with the engine and gearbox.

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Fredrikrosen
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Re: Trans oil

Post by Fredrikrosen » Fri Aug 03, 2018 7:18 am

Most here need to google ”oil additive EP”. Who prefer a 20W50 in a transmission over proper transmission oil? ”Was designed to use 20W50”? Oh my, the world will never run out of poets....
Ural 750 Retro -2010
Ural 650 Solo Export -1992
IZH Jupiter-3 -1980
IZH Planeta-5 -1992
Honda CR500R -1984
Dnepr MT16 with BMW engine :sold
Dnepr K650 -1969 :sold
Ural 650 -1993 :sold

Plus another 50+ bikes though the years.

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Emoore
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Re: Trans oil

Post by Emoore » Fri Aug 03, 2018 7:38 am

I run 20W50 in the engine as per my manual. I run 25W60 in the transmission and 80\90 in the final drive.
Ernest
2003 Patrol (Medusa)
2012 Ural T Olive (Roulette)
2017 Ural CT ( Grey Hex)
Yamaha FZ07 ( My need for speed )

Wake Forest, NC

John Wayne - Life's Hard. It's Even Harder When You're Stupid.

hotflash44
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Re: Trans oil

Post by hotflash44 » Fri Aug 03, 2018 8:51 am

Fredrikrosen wrote:
Fri Aug 03, 2018 7:18 am
Most here need to google ”oil additive EP”. Who prefer a 20W50 in a transmission over proper transmission oil? ”Was designed to use 20W50”? Oh my, the world will never run out of poets....
agree sort of ,when people put confidence in the R&D of the Ural factory as to their tried and true/tested??, requirements on oil im not 100% convinced that 20w50 all around is the best way to go ,sure its been the factory recommendation for quite a while and does work, but times/oils are getting much improved. only time will tell! :cheers:
2016 gear up asphalt grey, name Seryy Medved ,Air America CIA circa 1967/8 Vung Tau Viet Nam USS Tutuila ARG-4 (AND JUST A TOUCH OF AGENT ORANGE!)

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Fredrikrosen
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Re: Trans oil

Post by Fredrikrosen » Fri Aug 03, 2018 11:16 am

My old Volvo from the 50`s recommend sae 30 in the rear axle, shall i use it then only because a 60 year old manual says so? Ofcourse not, oils have developed and the russians recommend what they had at the time. Both Ural and Dnepr still use same recommendations as in the 60`s. That does not mean other oils not can be a better choice. Engine oil do not have EP additives that protect the gears, not a problem in older bikes based on they was worn out in the engine or the whole bike long before the gears. These days are the components better, last longer and correct oils shall be used. Not poetry, period. :) :cheers:
Ural 750 Retro -2010
Ural 650 Solo Export -1992
IZH Jupiter-3 -1980
IZH Planeta-5 -1992
Honda CR500R -1984
Dnepr MT16 with BMW engine :sold
Dnepr K650 -1969 :sold
Ural 650 -1993 :sold

Plus another 50+ bikes though the years.

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Emoore
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Re: Trans oil

Post by Emoore » Fri Aug 03, 2018 1:54 pm

One thing I have learned over the time I have been here is no matter what you put oil in, or how you do it, or even the brand you use, there will be a thousand other people with a thousand other answers for you. Nobody right or wrong.
This is how I feel.....Your machine, your way. You do you.
If you want to run Dot 4 brake fluid in your gearbox and cutting oil in you engine, you do you.
Oil threads are the worse ones to ask, because everyone seems to get so ugly if anyone disagress with them.
Can't we all just get along ...I asked an oil question once, got this answer. " Yes, put oil in it"...sound advice.
Ernest
2003 Patrol (Medusa)
2012 Ural T Olive (Roulette)
2017 Ural CT ( Grey Hex)
Yamaha FZ07 ( My need for speed )

Wake Forest, NC

John Wayne - Life's Hard. It's Even Harder When You're Stupid.

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Fredrikrosen
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Re: Trans oil

Post by Fredrikrosen » Fri Aug 03, 2018 4:08 pm

I disagree, there is something called knowledge. Sometimes refered as science, and this cleary shows that oil with EP additives are better for transmissions than oils without. People who says use what you want, says so because they have no clue what tribology is. Only poetry......... :oops:
Ural 750 Retro -2010
Ural 650 Solo Export -1992
IZH Jupiter-3 -1980
IZH Planeta-5 -1992
Honda CR500R -1984
Dnepr MT16 with BMW engine :sold
Dnepr K650 -1969 :sold
Ural 650 -1993 :sold

Plus another 50+ bikes though the years.

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chaos2
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Re: Trans oil

Post by chaos2 » Fri Aug 03, 2018 5:46 pm

Just put Redline Heavy Shockproof in it and the rear end and go ride.
past afflictions include limey motocars and bikes, R60/2 & a R65ls, and a Citroen.
Now a 2012 rusty GU and a 87 K75s with 200k miles both bought new
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hotflash44
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Re: Trans oil

Post by hotflash44 » Fri Aug 03, 2018 6:39 pm

chaos2 wrote:
Fri Aug 03, 2018 5:46 pm
Just put Redline Heavy Shockproof in it and the rear end and go ride.
i agree,i use Redline in all three holes,expensive very much so is it better than 30w, i sure think so, is it better than a 20w 50 probably, is there a need for different oil in the trans/fd, i say yes. but the observation that covers all oil thinking is that it needs to be checked often and replaced at proper intervals. i think the court is still out on whether synthetic oil will make a machine last and preform better in the long haul.IMHO :cheers:
2016 gear up asphalt grey, name Seryy Medved ,Air America CIA circa 1967/8 Vung Tau Viet Nam USS Tutuila ARG-4 (AND JUST A TOUCH OF AGENT ORANGE!)

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Fredrikrosen
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Re: Trans oil

Post by Fredrikrosen » Sat Aug 04, 2018 6:06 am

Redline, Shell, Castrol.......does not matter as long the oil fulfills the demands. Dont let fancy names or bottles fool you.
Ural 750 Retro -2010
Ural 650 Solo Export -1992
IZH Jupiter-3 -1980
IZH Planeta-5 -1992
Honda CR500R -1984
Dnepr MT16 with BMW engine :sold
Dnepr K650 -1969 :sold
Ural 650 -1993 :sold

Plus another 50+ bikes though the years.

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Re: Trans oil

Post by Hack Man » Sun Aug 05, 2018 10:11 pm

On the subject of whether to use "dedicated" gear oil or motor oil in transmissions, don't forget, most modern motorcycles are unit construction, meaning that the transmission and crankcase share the same oil. In most cases that recommended oil is 20W40 or 20W50.
Dependents: 2013 Ural Patrol
2017 HD Road King
2015 CSC RX3
2003 GL1800 Goldwing

hotflash44
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Re: Trans oil

Post by hotflash44 » Mon Aug 06, 2018 8:15 am

Hack Man wrote:
Sun Aug 05, 2018 10:11 pm
On the subject of whether to use "dedicated" gear oil or motor oil in transmissions, don't forget, most modern motorcycles are unit construction, meaning that the transmission and crankcase share the same oil. In most cases that recommended oil is 20W40 or 20W50.
yeah,forgot about that. also most other than Ural have helical cut trans gears which make for less wear and smoother shifting. still think i would break from the tried and true Ural recommendation and use Redline type shock-proof oil IMHO. :cheers:
2016 gear up asphalt grey, name Seryy Medved ,Air America CIA circa 1967/8 Vung Tau Viet Nam USS Tutuila ARG-4 (AND JUST A TOUCH OF AGENT ORANGE!)

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Re: Trans oil

Post by Bilgekeeldave » Tue Aug 07, 2018 10:51 am

Anything but Amsoil. I just don't like the pyramid scheme they market it with. :bs:
Dave

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Fredrikrosen
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Re: Trans oil

Post by Fredrikrosen » Sat Aug 18, 2018 11:42 am

Hack Man wrote:
Sun Aug 05, 2018 10:11 pm
On the subject of whether to use "dedicated" gear oil or motor oil in transmissions, don't forget, most modern motorcycles are unit construction, meaning that the transmission and crankcase share the same oil. In most cases that recommended oil is 20W40 or 20W50.
I have never seen a unit construction engine that has been recommended 20W50. 10W40 is the most common.
Ural 750 Retro -2010
Ural 650 Solo Export -1992
IZH Jupiter-3 -1980
IZH Planeta-5 -1992
Honda CR500R -1984
Dnepr MT16 with BMW engine :sold
Dnepr K650 -1969 :sold
Ural 650 -1993 :sold

Plus another 50+ bikes though the years.

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