Clint3240

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Oct 21, 2007
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is the gear oil for cars the same stuff as the gear oil that bike companys put their logo on and call it clutch saver to make it expensive?
 

2strokerfun

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May 19, 2006
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I've used auto oil in my bike transmissions for 35 years and the only time I've had slipping clutches is when the plates were worn out.
 

jsantapau

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Nov 10, 2008
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do not use gear oil for cars it will be way to thick . they must use a different numbering system then bike gear oil since 85 wt auto gear oil is thicker than 85 wt belray.if it doesn't do any damage it probably will make the gear box feel sluggish.
 

Matt90GT

Member
May 3, 2002
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It is a different grade of oil. Thus both have the same weights, but different oil

Use only stuff designed for the bike trannys.
 

gwcrim

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2strokerfun said:
I've used auto oil in my bike transmissions for 35 years and the only time I've had slipping clutches is when the plates were worn out.

Me too.

YMMV, I guess.
 

kaboom1371

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Jan 15, 2008
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gear oil and engine oil are different. I wouldn't put gear oil in a bike but, like 2stroker said i've been running regular 10/40 motor oil in my bikes for a very long time and never had any problems with it...
 

Rich Rohrich

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Clint3240 said:
is the gear oil for cars the same stuff as the gear oil that bike companys put their logo on and call it clutch saver to make it expensive?

Are you talking about the Hypoid gear oil used in automotive differentials?
 

Patman

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Whew for a minute there the idea crossed my mine that there was another type of rear end oil being discussed.
 

Clint3240

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Oct 21, 2007
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Rich Rohrich said:
Are you talking about the Hypoid gear oil used in automotive differentials?


yup rear end oil...it was just an idea...i just put 2 together....clutch saver is gear oil and the truck stuff is gear oil wonderd if they were any different
 

Kawi4life

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Feb 21, 2005
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I've always used Bel Ray 80wt Gear Saver in my two strokes, I'm real clueless on these new 4-strokes. What's the equivalent quality oil for the 4-stroke of the Bel Ray 80wt Gear Saver or can I also use it in the four stroke? (07 KX450f here).
 

Rich Rohrich

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Clint3240 said:
yup rear end oil...it was just an idea...i just put 2 together....clutch saver is gear oil and the truck stuff is gear oil wonderd if they were any different

They are very different. Hypoid gear oil is not what you want in your motorcycle gearbox.
 
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