Mobil1 20x50 vtwin synthetic in both holes
#1
05-21-2019, 05:44 PM
Mobil1 20x50 vtwin synthetic in both holes
Hey all. Really don’t want to get too **** about this stuff as I know there are a ton of opinions, but any issue with running Mobil1 20x50 synthetic vtwin oil in engine and primary/transmission ? Thought it would be nice to keep one type of oil around for the bike. This is my second oil change on a ‘19 sportster 48 so wanted to switch to synthetic and I like that it’s available at most parts stores. Although I’ll be going to harley for the filter so I guess it doesn’t matter other than topping off every now and then.
Thoughts?
Thoughts?
#3
05-21-2019, 06:36 PM
#4
05-21-2019, 06:39 PM
#6
05-21-2019, 07:12 PM
Thanks. Maybe shifts smoother with that thick stuff too eh? Maybe I’ll try the mobil1 20x50 vtwin and if it shifts weird I’ll run a dedicated gear lol.
But overall synthetic is fine in the transmission/primary?
But overall synthetic is fine in the transmission/primary?
#7
05-21-2019, 07:39 PM
Seasoned HDF Member
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#8
05-21-2019, 07:47 PM
The Red line is just a little thicker at about 16 cSt @ 100C. Still about 20% thinner than most 20w-50 motor oils.
The Redline 75w-110 is about 21.0 cSt @ 100C - at the upper end of the 50 weight motor oil viscosity range.
The Redline 75w-110 is about 21.0 cSt @ 100C - at the upper end of the 50 weight motor oil viscosity range.
The following users liked this post:
Kem48 (05-21-2019)
#10
05-21-2019, 07:55 PM
Road Warrior
The Tech at Red Line Recommends their 75W90 GL5 for the Sportster Trans.
Thank you for contacting Red Line Oil, in the shared Sportster primary/transmission the 75W90 is recommended, a product that has been used extensively and performs well.
The 75W90 is the product we have have used for a number of years with very good results in Sportster/Buell transmissions, matching the viscosity and type fluid called for.
The 80W Motorcycle Gear Oil is a lower viscosity than called for, the ShockProof gear oils can due to their unique characteristics could cause sticking of the Harley clutches.
The 75W90 would be preferred and recommended over 80W Motorcycle Gear Oil in these applications.
There can be issues with some GL-5 gear oils in certain applications. Some can be corrosive to brass, bronze or copper, not an issue with our GL-5 gear oils, they don�t cause corrosion, pitting or metal removal. In a synchro equipped transmission the friction modifiers contained in many gear oils can make them too slippery, though not the case in a motorcycle transmission with dog rings.
So if you want the right viscosity and dont want to worry about it damaging anything, go with Redline http://www.redlineoil.com/product.aspx?pid=133&pcid=4
The 75W90 is the product we have have used for a number of years with very good results in Sportster/Buell transmissions, matching the viscosity and type fluid called for.
The 80W Motorcycle Gear Oil is a lower viscosity than called for, the ShockProof gear oils can due to their unique characteristics could cause sticking of the Harley clutches.
The 75W90 would be preferred and recommended over 80W Motorcycle Gear Oil in these applications.
There can be issues with some GL-5 gear oils in certain applications. Some can be corrosive to brass, bronze or copper, not an issue with our GL-5 gear oils, they don�t cause corrosion, pitting or metal removal. In a synchro equipped transmission the friction modifiers contained in many gear oils can make them too slippery, though not the case in a motorcycle transmission with dog rings.
So if you want the right viscosity and dont want to worry about it damaging anything, go with Redline http://www.redlineoil.com/product.aspx?pid=133&pcid=4
The following users liked this post:
Kem48 (05-21-2019)