Final Drive Oil

**Cajunrider** · 02-01-2009, 10:43 PM

I picked up a quart squeeze bottle of Royal Purple 75w-90 synthetic gear oil this afternoon. Does anyone use this in their final drive? This will be the first synthetic oil in the gear case with 7,600 miles rolled up. It was changed by the dealer at the first service 600 miles. My plans are to change the final drive oil at every other oil change.

dhomoney · 02-02-2009, 02:37 AM

I used Valvoline DuraBlend 80W-90 when I did my 600 mile service. It works fine, but holy sh*t does that stuff stink. I changed my oil using Mobil-1 Turbo Diesel Full Syn and that stuff smelled good, like yeasty bread, but this stuff stunk to the high heavens.

**trip** · 02-02-2009, 07:12 AM

Terrebonne,
I use Royal Purple also for the final drive oil, but I use 75w-140 syn. Change it out every other time I change my oil and oil filter.

Just remember when changing to leave your Nomad leaning on the kick-stand for best results.

emu · 02-02-2009, 07:31 AM

I think you'll find changing the final drive oil every second oil change a bit of over kill. The final drive unit is a closed, constant mesh gear system. It only does one thing. So once the new oil is in ... It will last a very long time. I change mine every spring as part of my tune up and general once over of the entire bike. Done it this way for over twelve years. (8 yrs. 1400 Intruder, 4 yrs. Nomad) The initial change at the 600 mile mark (if I remember) is very important, But depending on your yearly mileage, once a year is all the changing you'll probably need.

caddman11 · 02-02-2009, 07:50 AM

I use Amsoil and change every other oil change.

watchman · 02-02-2009, 11:36 AM

If the Royal Purple is rated as a GL5 or GL6 it is fine to use.

coldfingers · 02-02-2009, 12:37 PM

I had to laugh, I just changed final drive oil a little while ago and said the same thing, that stuff really does stink! Get a couple drops on your clothes or coat and it really stays with you!

02-01-2009, 10:43 PM	#1
Cajunrider Join Date: Apr 2008 Location: (SE Louisiana) Posts: 8,340	Final Drive Oil I picked up a quart squeeze bottle of Royal Purple 75w-90 synthetic gear oil this afternoon. Does anyone use this in their final drive? This will be the first synthetic oil in the gear case with 7,600 miles rolled up. It was changed by the dealer at the first service 600 miles. My plans are to change the final drive oil at every other oil change. __________________ 2016 Electra Glide Ultra Limited CVO Palladium Silver / Phantom Blue 110 cu in SE 2012 Electra Glide Ultra Limited (Traded 6/22/16) Tequila Sunrise / HD Orange Vance & Hines true dual headers Rinehart 4" slip ons Screamin Eagle Super Tuner Screamin Eagle Stage 1 intake Dyno tuned H.O.G.# 4514015 2007 Nomad 1600 (Traded 6/23/12) VBA #482 Login or Register to Remove Ads
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02-02-2009, 02:37 AM	#2
dhomoney Advanced Member Join Date: Oct 2008 Location: Lake Tenkiller, OK Posts: 737	Final Drive Oil I used Valvoline DuraBlend 80W-90 when I did my 600 mile service. It works fine, but holy sh*t does that stuff stink. I changed my oil using Mobil-1 Turbo Diesel Full Syn and that stuff smelled good, like yeasty bread, but this stuff stunk to the high heavens.
	0

02-02-2009, 07:12 AM	#3
trip VBA Founder Join Date: Jun 2007 Location: Lindale, Texas Posts: 6,846	Final Drive Oil Terrebonne, I use Royal Purple also for the final drive oil, but I use 75w-140 syn. Change it out every other time I change my oil and oil filter. Just remember when changing to leave your Nomad leaning on the kick-stand for best results. __________________ Robert "Trip" Hilliard VBA/KawaNOW - Founder/Past President VBA # 00001 Trip's Website Custer 09, 18 / Maggie Valley 11 / Eureka Springs 09, 17 / Antlers 09, 10, 11, 13, 15, 16, 17, 18 Texas Hill Country / Deals Gap / Colorado / Wyoming / Montana / Utah / More trips for Trip
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02-02-2009, 07:31 AM	#4
emu Member Join Date: Oct 2008 Location: Toronto Posts: 127	Final Drive Oil I think you'll find changing the final drive oil every second oil change a bit of over kill. The final drive unit is a closed, constant mesh gear system. It only does one thing. So once the new oil is in ... It will last a very long time. I change mine every spring as part of my tune up and general once over of the entire bike. Done it this way for over twelve years. (8 yrs. 1400 Intruder, 4 yrs. Nomad) The initial change at the 600 mile mark (if I remember) is very important, But depending on your yearly mileage, once a year is all the changing you'll probably need.
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02-02-2009, 07:50 AM	#5
caddman11 Advanced Member Join Date: Feb 2008 Location: Northwest Indiana Posts: 890	Final Drive Oil I use Amsoil and change every other oil change. Login or Register to Remove Ads
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02-02-2009, 11:36 AM	#6
watchman Sr. Member Join Date: Jan 2008 Location: Macon, Missouri Posts: 1,175	Final Drive Oil If the Royal Purple is rated as a GL5 or GL6 it is fine to use.
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02-02-2009, 12:37 PM	#7
coldfingers Member Join Date: Jan 2008 Location: Warren, MN. Posts: 166	Final Drive Oil I had to laugh, I just changed final drive oil a little while ago and said the same thing, that stuff really does stink! Get a couple drops on your clothes or coat and it really stays with you!
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