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dobryan
Samba Member
Joined: March 24, 2006
Posts: 16504
Location: Brookeville, MD
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Nickel_Nackel
Samba Member
Joined: February 07, 2018
Posts: 187
Location: Bellingahm WA
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 Posted: Mon Mar 19, 2018 3:33 pm Post subject: Re: Transmission oil top off |
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yeah that's a good tip i saw.
thank you all for the very detailed info on gear oil.
makes a lot of sense now!
ya'll been very helpful
I'm going to try to drain and refill the oil this weekend!
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1985 1.9L Potato |
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shagginwagon83
Samba Member
Joined: February 07, 2016
Posts: 3800
Location: VA/TN
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| Posted: Mon Mar 19, 2018 5:59 pm Post subject: Re: Transmission oil top off |
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So the fill plug is kinda tricky to get to. It's a 17mm hex key like thing. I bought a tool that made it easy for me to get to. Van cafe sells a tool. They also sell new drain and fill plugs. Mine were in decent shape so I just used to old magnetic drain plug for my fill plug as recommended earlier in this thread.
The drain plug was tricky for me because my exhaust was in the way. I ended up using a big nut and a wrench. Whatever floats your boat.
ABN 3/8” Inch Motorcycles Hex Axle Tool – 17mm, 19mm, 22mm, 24mm – Hex Allen Front Wheel Hub Axle Spindle Socket Adapter https://www.amazon.com/dp/B01GVQOR2I/ref=cm_sw_r_cp_apa_aXfSAb62ZBFCF
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Brandon
"Jo Ann" - '83.5 Westfalia EJ22e w/Peloquin
Instagram @joannthevan |
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Wayne S. Johnson
Samba Member
Joined: April 12, 2006
Posts: 1265
Location: GILROY, CA
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50351
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| Posted: Mon Mar 19, 2018 8:31 pm Post subject: Re: Transmission oil top off |
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| Wayne S. Johnson wrote: |
What test data is available on the horse power difference between conventional vs. synthetic gear lube?
Did the factory ever use synthetic gear lube? |
I don't think there is that much difference between synthetics and conventional gear lubes in the same price range. |
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Wayne S. Johnson
Samba Member
Joined: April 12, 2006
Posts: 1265
Location: GILROY, CA
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| Posted: Mon Mar 19, 2018 10:18 pm Post subject: Re: Transmission oil top off |
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Choosing Between Synthetic Lubricants and Conventional Oils
Synthetic lubricants Service Life
A popular topic concerning the difference between mineral oils and synthetic lubricants is service life. Synthetic lubricants as a class don't show their age, particularly at high temperatures, and have a longer service life. Often, the change interval is several times longer for synthetics at identical operating temperatures; however, the exact number depends on operating conditions, the additives and the specific synthetic used.
Synthetic lubricants have a lower friction coefficient in a gearbox, better film strength and a better relationship between viscosity and temperature (viscosity index, VI). This indicates synthetic lubricants can be used at lower viscosity grades and lower temperatures. When this is the case, the gap between the service lives of minerals and synthetics significantly increases.
Related to the oil change interval is the issue of product loss through evaporation and disposal. Both sludge and residue form more readily with mineral oil products. Evaporative losses are lower for synthetics due to the lack of lighter hydrocarbon structures. Disposal is more costly with some synthetics, but it is nowhere near enough to compensate for change-out intervals that are three to five times more frequent.
Ref:
http://www.machinerylubrication.com/Read/1290/synthetic-conventional-oils
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50351
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| Posted: Mon Mar 19, 2018 11:11 pm Post subject: Re: Transmission oil top off |
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| Since Group III Base Oils are nothing but heavily refined conventional oils that legally are sold as synthetic oils, it is pretty hard to claim that synthetic oils are superior to conventional oils. They are often one and the same. |
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Sodo
Samba Member
Joined: July 06, 2007
Posts: 9613
Location: Western WA
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| Posted: Tue Mar 20, 2018 1:17 am Post subject: Re: Transmission oil top off |
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They are certainly "the same" after contaminated with metal dust.
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'90 Westy EJ25, 2Peloquins, 3knobs, pressure-oiled GT mainshaft, filtered, cooled gearbox
'87 Tintop w 47k 53k, '12 SmallCar EJ25, cooled filtered gearbox
....KTMs, GasGas, SPOT mtb |
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Nickel_Nackel
Samba Member
Joined: February 07, 2018
Posts: 187
Location: Bellingahm WA
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| Posted: Wed Mar 21, 2018 5:44 pm Post subject: Re: Transmission oil top off |
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I was talked into buying this at my local napa. It's the only gl-4 they had. This should work fine right?
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1985 1.9L Potato |
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50351
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| Posted: Wed Mar 21, 2018 6:52 pm Post subject: Re: Transmission oil top off |
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| It should be fine. |
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dobryan
Samba Member
Joined: March 24, 2006
Posts: 16504
Location: Brookeville, MD
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dhaavers
Samba Member
Joined: March 19, 2010
Posts: 7757
Location: NE MN (tinyurl.com/dhaaverslocation)
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| Posted: Wed Mar 21, 2018 8:10 pm Post subject: Re: Transmission oil top off |
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Good stuff, nice price.
- Dave
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86 White Wolfsburg Westy Weekender
"The WonderVan"
<EDITED TO PROTECT INNOCENT PIXELS> |
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Nickel_Nackel
Samba Member
Joined: February 07, 2018
Posts: 187
Location: Bellingahm WA
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| Posted: Wed Mar 21, 2018 9:23 pm Post subject: Re: Transmission oil top off |
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thank you for the help!
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1985 1.9L Potato |
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