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90FXRS · May 22nd, 2011, 12:56 AM

I'm a new fan of Spectro 6-speed tranny fluid. I was running Redline and after reading a few threads posted by Glider, I decided to try Spectro this time. SO MUCH smoother and quieter. BTW....it's in a 5-speed. The GL-5 fluid is not over-kill in a 5-speed. It makes it that much better.

Glider, thanks for the threads of wisdom.

ckhismine · May 22nd, 2011, 07:01 AM

I think the number of speed would not be a factor. Maybe I should try it next time.

glider · May 22nd, 2011, 07:10 AM

Quote: Originally Posted by 90FXRS View Post

I'm a new fan of Spectro 6-speed tranny fluid. I was running Redline and after reading a few threads posted by Glider, I decided to try Spectro this time. SO MUCH smoother and quieter. BTW....it's in a 5-speed. The GL-5 fluid is not over-kill in a 5-speed. It makes it that much better.

Glider, thanks for the threads of wisdom.

I'm glad you tried it and are happy with the results. Thanks for posting back after trying the Spectro.

glider · May 22nd, 2011, 07:18 AM

Quote: Originally Posted by smitty901 View Post

I use Spectro GL5 in my 5 speed also. When we say it is over kill what we mean is the 5 speed did just fine on others lubes.

The 5 speed only requires GL1, the GL5 is "overkill" in the 5 speed because it contains additives that were meant for the different cut of the gears in a 6 speed trans which differ from the 5 speed.

bobalu · May 22nd, 2011, 08:46 AM

I just switched over to Spectro 6 spd. and their Primary oil after my 1600km service. The difference was amazing! Very smooth shifting and dropping into neutral is a breeze. Huge improvement in the clutch as well. I'm going to try their full synthetic engine oil next.

glazier · May 22nd, 2011, 09:47 AM

Quote: Originally Posted by glider View Post

The 5 speed only requires GL1, the GL5 is "overkill" in the 5 speed because it contains additives that were meant for the different cut of the gears in a 6 speed trans which differ from the 5 speed.

Is one better than the other for the 5 speed, or will they both work equally as well??? In other words, if I was changing out my tranny fluid, which would I be better off with, GL-1 or GL-5???

glider · May 22nd, 2011, 09:50 AM

Quote: Originally Posted by glazier View Post

Is one better than the other for the 5 speed, or will they both work equally as well??? In other words, if I was changing out my tranny fluid, which would I be better off with, GL-1 or GL-5???

GL1 is all that is needed for the 5 speed.

glazier · May 22nd, 2011, 09:57 AM

Quote: Originally Posted by glider View Post

GL1 is all that is needed for the 5 speed.

Quote: Originally Posted by smitty901 View Post

The GL5 will sever you well.

Maybe I'll just split the difference and go with GL-3

glider · May 22nd, 2011, 09:59 AM

Quote: Originally Posted by glazier View Post

Maybe I'll just split the difference and go with GL-3

While the GL5 WILL work in a 5 speed, it isn't necessary. As posted above the GL5 is for the helical cut gears in the 6 speeds and not necessary in a 5 speed even thou it will work too.

90FXRS · May 22nd, 2011, 09:01 PM

Quote: Originally Posted by glider View Post

The 5 speed only requires GL1, the GL5 is "overkill" in the 5 speed because it contains additives that were meant for the different cut of the gears in a 6 speed trans which differ from the 5 speed.

The bottle says it's for helical and straight-cut gears. Isn't the 6-speed helical and the 5-speed straight-cut?

May 22nd, 2011, 07:01 AM	#2
ckhismine Warming The Wheels Ride: Road Glide Ultra Join Date: Dec 2nd, 2007 Location: Cincinnati,Ohio Posts: 147 My Mood:	Re: Spectro 6-Speed I think the number of speed would not be a factor. Maybe I should try it next time. __________________ Lets Ride

May 22nd, 2011, 07:10 AM	#3
glider Frozen Account Ride: 07 Road King Join Date: Jun 21st, 2007 Posts: 25,999 My Mood:	Re: Spectro 6-Speed Quote: Originally Posted by 90FXRS View Post I'm a new fan of Spectro 6-speed tranny fluid. I was running Redline and after reading a few threads posted by Glider, I decided to try Spectro this time. SO MUCH smoother and quieter. BTW....it's in a 5-speed. The GL-5 fluid is not over-kill in a 5-speed. It makes it that much better. Glider, thanks for the threads of wisdom. I'm glad you tried it and are happy with the results. Thanks for posting back after trying the Spectro.

May 22nd, 2011, 07:18 AM	#4
glider Frozen Account Ride: 07 Road King Join Date: Jun 21st, 2007 Posts: 25,999 My Mood:	Re: Spectro 6-Speed Quote: Originally Posted by smitty901 View Post I use Spectro GL5 in my 5 speed also. When we say it is over kill what we mean is the 5 speed did just fine on others lubes. The 5 speed only requires GL1, the GL5 is "overkill" in the 5 speed because it contains additives that were meant for the different cut of the gears in a 6 speed trans which differ from the 5 speed.

May 22nd, 2011, 08:46 AM	#5
bobalu Contributor$ Ride: 2010 Road King Classic Join Date: Feb 2nd, 2011 Location: Canada Posts: 79 My Mood:	Re: Spectro 6-Speed I just switched over to Spectro 6 spd. and their Primary oil after my 1600km service. The difference was amazing! Very smooth shifting and dropping into neutral is a breeze. Huge improvement in the clutch as well. I'm going to try their full synthetic engine oil next.

May 22nd, 2011, 09:47 AM	#6
glazier Community Star Ride: 2013 Ultra Limited Anniversary Edition Join Date: Mar 26th, 2011 Location: Dallas, Tx Posts: 559 My Mood:	Re: Spectro 6-Speed Quote: Originally Posted by glider View Post The 5 speed only requires GL1, the GL5 is "overkill" in the 5 speed because it contains additives that were meant for the different cut of the gears in a 6 speed trans which differ from the 5 speed. Is one better than the other for the 5 speed, or will they both work equally as well??? In other words, if I was changing out my tranny fluid, which would I be better off with, GL-1 or GL-5???

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May 22nd, 2011, 09:50 AM	#7
glider Frozen Account Ride: 07 Road King Join Date: Jun 21st, 2007 Posts: 25,999 My Mood:	Re: Spectro 6-Speed Quote: Originally Posted by glazier View Post Is one better than the other for the 5 speed, or will they both work equally as well??? In other words, if I was changing out my tranny fluid, which would I be better off with, GL-1 or GL-5??? GL1 is all that is needed for the 5 speed.

May 22nd, 2011, 09:57 AM	#8
glazier Community Star Ride: 2013 Ultra Limited Anniversary Edition Join Date: Mar 26th, 2011 Location: Dallas, Tx Posts: 559 My Mood:	Re: Spectro 6-Speed Quote: Originally Posted by glider View Post GL1 is all that is needed for the 5 speed. Quote: Originally Posted by smitty901 View Post The GL5 will sever you well. Maybe I'll just split the difference and go with GL-3

May 22nd, 2011, 09:59 AM	#9
glider Frozen Account Ride: 07 Road King Join Date: Jun 21st, 2007 Posts: 25,999 My Mood:	Re: Spectro 6-Speed Quote: Originally Posted by glazier View Post Maybe I'll just split the difference and go with GL-3 While the GL5 WILL work in a 5 speed, it isn't necessary. As posted above the GL5 is for the helical cut gears in the 6 speeds and not necessary in a 5 speed even thou it will work too.

May 22nd, 2011, 09:01 PM	#10
90FXRS Contributor$ Ride: 2001 FLSTFI Join Date: Jun 17th, 2010 Location: Southern Indiana Posts: 370 My Mood:	Re: Spectro 6-Speed Quote: Originally Posted by glider View Post The 5 speed only requires GL1, the GL5 is "overkill" in the 5 speed because it contains additives that were meant for the different cut of the gears in a 6 speed trans which differ from the 5 speed. The bottle says it's for helical and straight-cut gears. Isn't the 6-speed helical and the 5-speed straight-cut? __________________ *There's NO Substitute For Cubic Inches!!!*

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