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Author Topic: Gear Oil  (Read 4283 times)

Offline Billk

  • ^ Proficient Motobricker
  • Posts: 120
Gear Oil
« on: September 14, 2018, 08:48:55 PM »
Looking to try Redline Synthetic Gear oil.
There’s at least 3 different ones.
2 with different weight# and one that says Shock
Proof.
Could the guys that have used this let me know
which one they’ve tried and did they like it.
I’m trying to improve the 1 to 2 shift
Bill 95 K75
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  • NYS
  • Owned many BMWs and Harley's presently '95 75K and '14 V Strom
Presently own a 1995 K75 and a 2014 Suzuki DL650

Offline The Mighty Gryphon

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Re: Gear Oil
« Reply #1 on: September 14, 2018, 09:02:07 PM »
Have you lubed the clutch splines?  They have a major impact on the 1-2 and 2-1 shift. 
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  • In my garage in Marilla, NY
  • '91K100RS White/Blue
Current:
'91 K100RS16V "Moby Brick Too"

Past:
'94 K75RT "Ilsa, She Wolf of the SS"
'92 K100RS16V "Moby Brick" (RIP, deceased in a vehicular assault)
'94 K75S Special Edition Dakar Yellow "Cheetos"
'89 K100RS Special Edition "Special Ed"

Offline Chaos

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Re: Gear Oil
« Reply #2 on: September 14, 2018, 09:15:02 PM »
+1 on the splines, it's a common issue with these bikes.  As for the Redline I'd recommend the Heavy Duty Shockproof for the transmission.  I've been using it in my Ural and notice a dramatic improvement.  But that is a box of rocks and gravel, it might be overkill with a K bike. I've never had shifting issues with regular gear oil (except at 100K with a bent shift fork) Somewhere north of 200K now, I think it has Valvoline Syn 75-140 in it.
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  • sw ohio
1987 K75S    VIN 0231
Original owner, Original litter
200,000 miles (plus or minus) and 5 paint jobs
sold 6/23
2023 Ural 2WD sidecar (BMW's bastard step child)

Offline The Mighty Gryphon

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Re: Gear Oil
« Reply #3 on: September 14, 2018, 09:24:37 PM »
I throw a couple spoonsful of Molybdenum disulfide powder in the transmission.  After a couple hundred miles of running it coats everything in there and makes all the parts that slide around when you shift move more easily.
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  • In my garage in Marilla, NY
  • '91K100RS White/Blue
Current:
'91 K100RS16V "Moby Brick Too"

Past:
'94 K75RT "Ilsa, She Wolf of the SS"
'92 K100RS16V "Moby Brick" (RIP, deceased in a vehicular assault)
'94 K75S Special Edition Dakar Yellow "Cheetos"
'89 K100RS Special Edition "Special Ed"

Offline Billk

  • ^ Proficient Motobricker
  • Posts: 120
Re: Gear Oil
« Reply #4 on: September 15, 2018, 09:31:53 PM »
Redline makes:
-75W90 GL-5
-75W140
-Super light Shock Proof 75W90
-Heavy Shock Proof

Which one?
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  • NYS
  • Owned many BMWs and Harley's presently '95 75K and '14 V Strom
Presently own a 1995 K75 and a 2014 Suzuki DL650

Offline beemuker

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Re: Gear Oil
« Reply #5 on: September 16, 2018, 05:16:10 PM »
Quote from: Chaos on September 14, 2018, 09:15:02 PM
s.  As for the Redline I'd recommend the Heavy Duty Shockproof for the transmission.  I've been using it in my Ural and notice a dramatic improvement
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  • Panama City, FL
  • '00 R1100RT,’92 K75 RT,past tense:'83 R80ST, '93 K1100LT,,94 R1100RS K75s, Honda NC700, Suzuki Bandit 1200, bmw R75/5 Honda 750

Offline K1300S

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Re: Gear Oil
« Reply #6 on: September 16, 2018, 10:19:11 PM »
shockproof isn't needed in a k bike FD or trans. 
redline MTL in the trans, redline 75/90 ns or 75/140 ns in the FD.  "ns" is the stuff WITHOUT friction modifier for NON-LSD final drives.

i have been using redline stuff in all my BMW's for 20+ years..which includes M street cars and full on racecars.  i only use shockproof in the race car differentials.  things that are really heavily loaded in track conditions.  we call shockproof "blue goo" because it stains and makes a mess of everything.
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Offline Billk

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  • Posts: 120
Re: Gear Oil
« Reply #7 on: September 18, 2018, 04:08:45 PM »
Can I use this one?
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  • NYS
  • Owned many BMWs and Harley's presently '95 75K and '14 V Strom
Presently own a 1995 K75 and a 2014 Suzuki DL650

Offline Laitch

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Re: Gear Oil
« Reply #8 on: September 18, 2018, 04:37:06 PM »
Quote from: Billk on September 18, 2018, 04:08:45 PM
Can I use this one?
You were writing about Staburags NBU30 PTM back in July. Have you lubed the transmission input shaft splines? Don't put off that input shaft lube if you don't know when it was done last. That will help you down shift for certain. Be certain your clutch is adjusted, too.  Final drive input shaft gets lubed every tire change.

I use 80W90 from NAPA so I'm not qualified to answer your question. mlytle answered your question.
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  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles
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