Harley Davidson Forums

mqhybrid · Jun 15th, 2009, 10:15 PM

Which oil would you use 20W50 or 75W140 in a six speed transmission touring?

glider · Jun 15th, 2009, 10:21 PM

75/140 spectro

maine-e-axe · Jun 16th, 2009, 08:55 AM

Depends on where you live, if it's in the north you might want 75/90

TQuentin1 · Jun 16th, 2009, 02:12 PM

Quote: Originally Posted by mqhybrid View Post

Which oil would you use 20W50 or 75W140 in a six speed transmission touring?

Many of us here have tried and are very impressed with the Spectro 6-spd gear lube in these trannies. See here:

Spectro Oils of America - Transmission Gear Oils

If you can't find it locally, see their website for ordering online.

TQ

MASA · Jun 16th, 2009, 02:45 PM

Mobile 1 75w-140, just did it this past saturday. i can tell the difference. trany has a smother shift. won't go back to 20w-50

glider · Jun 16th, 2009, 02:51 PM

I used the Mobil 75/90 until I went to the spectro and I saw the same difference between these two as I did going to the mobil gear oil.

00BUCKSHOT · Jun 16th, 2009, 08:13 PM

i use mobil 1 75w 140 because my engine got about 2mpg better with mobil1 in it so i figured hey these guys make good stuff and i put it in the tranny

mqhybrid · Jun 16th, 2009, 10:26 PM

Thanks. But being in canada spectro is hard to come buy. But royal purple is easer to come buy but its $$$ 25.00 a bottle. And dare i say it amsoil in can get much cheaper.

00BUCKSHOT · Jun 16th, 2009, 10:33 PM

Quote: Originally Posted by mqhybrid View Post

Thanks. But being in canada spectro is hard to come buy. But royal purple is easer to come buy but its $$$ 25.00 a bottle. And dare i say it amsoil in can get much cheaper.

AMSoil is pretty good stuff
i just don't like the way they market there product

doj1975 · Jun 17th, 2009, 07:00 AM

I am running Amsoil Severe Gear 75W-110 in my 09 Street Glide and I am very satisfied. I went to there web site and signed up for the prefered customer plan. I save a little money on the oil and it's convenient to be able to order the oil and come home in a couple days with it waiting on my door steps.

Jun 15th, 2009, 10:21 PM	#2
glider Frozen Account Ride: 07 Road King Join Date: Jun 21st, 2007 Posts: 25,999 My Mood:	Re: Transmission oil??? 75/140 spectro

Jun 16th, 2009, 08:55 AM	#3
maine-e-axe Community Star Ride: 2004 flhtcu Join Date: Dec 27th, 2008 Location: south western Maine Posts: 733 My Mood:	Re: Transmission oil??? Depends on where you live, if it's in the north you might want 75/90

Jun 16th, 2009, 02:12 PM	#4
TQuentin1 Moderators Ride: '03 FLHTCUI (Ultra Classic) Join Date: Apr 4th, 2008 Location: Sugar Land, TX Posts: 4,174	Re: Transmission oil??? Quote: Originally Posted by mqhybrid View Post Which oil would you use 20W50 or 75W140 in a six speed transmission touring? Many of us here have tried and are very impressed with the Spectro 6-spd gear lube in these trannies. See here: Spectro Oils of America - Transmission Gear Oils If you can't find it locally, see their website for ordering online. TQ __________________ Please stop by the "The Self-Help pages." >>Self-Help Information and Tips - Harley Davidson Community Self-Help Threads Information<< click me!

Jun 16th, 2009, 02:45 PM	#5
MASA Start The Engine Ride: 2008 Ultra Classic Join Date: May 6th, 2009 Posts: 16 My Mood:	Re: Transmission oil??? Mobile 1 75w-140, just did it this past saturday. i can tell the difference. trany has a smother shift. won't go back to 20w-50

Jun 16th, 2009, 02:51 PM	#6
glider Frozen Account Ride: 07 Road King Join Date: Jun 21st, 2007 Posts: 25,999 My Mood:	Re: Transmission oil??? I used the Mobil 75/90 until I went to the spectro and I saw the same difference between these two as I did going to the mobil gear oil.

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Jun 16th, 2009, 08:13 PM	#7
00BUCKSHOT Community Star Ride: WIDEGLIDE Join Date: Apr 7th, 2009 Location: South Carolina Posts: 446 My Mood:	Re: Transmission oil??? i use mobil 1 75w 140 because my engine got about 2mpg better with mobil1 in it so i figured hey these guys make good stuff and i put it in the tranny

Jun 16th, 2009, 10:26 PM	#8
mqhybrid Warming The Wheels Ride: 2009 street glide Join Date: Mar 22nd, 2008 Location: calgary, alberta Posts: 114 My Mood:	Re: Transmission oil??? Thanks. But being in canada spectro is hard to come buy. But royal purple is easer to come buy but its $$$ 25.00 a bottle. And dare i say it amsoil in can get much cheaper.

Jun 16th, 2009, 10:33 PM	#9
00BUCKSHOT Community Star Ride: WIDEGLIDE Join Date: Apr 7th, 2009 Location: South Carolina Posts: 446 My Mood:	Re: Transmission oil??? Quote: Originally Posted by mqhybrid View Post Thanks. But being in canada spectro is hard to come buy. But royal purple is easer to come buy but its $$$ 25.00 a bottle. And dare i say it amsoil in can get much cheaper. AMSoil is pretty good stuff i just don't like the way they market there product Last edited by glider; Jun 16th, 2009 at 10:40 PM. Reason: add quotes

Jun 17th, 2009, 07:00 AM	#10
doj1975 Warming The Wheels Ride: 09 STREET GLIDE Join Date: Mar 19th, 2009 Posts: 137	Re: Transmission oil??? I am running Amsoil Severe Gear 75W-110 in my 09 Street Glide and I am very satisfied. I went to there web site and signed up for the prefered customer plan. I save a little money on the oil and it's convenient to be able to order the oil and come home in a couple days with it waiting on my door steps.

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