What weight is HD primary fluid???

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#21

05-18-2010, 10:06 AM

skidder

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BelRay in the primary for me. It's the same formula as 80w gear saver used in 2 stroke motocross bikes. Great stuff in my MX bike.

#22

05-18-2010, 01:01 PM

Cyclops

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I am currently using AMSOIL SVG 75w-90 in my primary and trans (sportster) and MTG 75w-90 Manual Transmission & Transaxle fluid in my wife's. If I had a big-twin, I would likely run MTG in the transmission and ATF in the primary. ATF lends itself well to chain drive applications (the reason that it is specified for most automotive transfer cases).

#23

05-19-2010, 06:11 AM

italfatboy

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I've got 20W50 Synthetic Blend Valvoline in the Primary, 75W140 Mobil 1 in the Tranny. Shifts are smooth as glass.

#24

05-19-2010, 07:10 AM

1flhtk4me

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I have been using Valvoline 20W50 motorcycle oil.About $4 a qt.

#25

05-22-2010, 09:34 AM

1st HD

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Quote:

Originally Posted by Bluegrasser

My primary currently has Formula+ in it, but it's about to get a dose of conventional Rotella T 15W40 which is JASO-MA certified. I figure it's great (dare I say legendary) oil that is about half the price of Formula+. That said, I have no problems with Formula+ and would run it again.

+1, I have been using Rotella T too.