BT Newb Question
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Road Warrior
Joined: Dec 2008
Posts: 1,297
Likes: 3
From: Oklahoma City, OK
BT Newb Question
Ok, forgive me for being an idiot, but I’m at work and I don’t have my owner’s manual and I’d like to pick this up on my way home from work…. I’m a new Big Twin owner (traded in my Sportster) and I’m not exactly sure what I need to be buying for my 1,000 service? I see that it holds 3 quarts in the engine. Do the ‘09s have a separate hole for transmission? Seems like I picked up somewhere that the new bikes share the transmission and engine oil? I may be wrong.
Anyway, I would appreciate it if somebody could fill me in on what I need for the transmission and primary if they are separate. I’ve been using Mobil 1 VTwin in my Sportster and that’s what I’ll be picking up for the engine in the BT. I’d just like to know if I maybe need to pick up an extra quart for the transmission? I’m sure the Harley guys can tell me what else I need when I get to the dealership as far as filter and primary lube.
Anyway, I would appreciate it if somebody could fill me in on what I need for the transmission and primary if they are separate. I’ve been using Mobil 1 VTwin in my Sportster and that’s what I’ll be picking up for the engine in the BT. I’d just like to know if I maybe need to pick up an extra quart for the transmission? I’m sure the Harley guys can tell me what else I need when I get to the dealership as far as filter and primary lube.
Big Kahuna HDF Member
Joined: Feb 2006
Posts: 23,881
Likes: 34
From: USA
You have 3 seperate sumps. Engine, Trans, Primary. Get the 20w50 for the engine (mine takes 2.5 qts on a wet change and 3.0 on a dry change if the engine has been taken apart).
My primary uses 1.0qts and you can use the 20w50 or 10w40 (lots of guys prefer and use 10w40 Vtwin)
My 6 speed trans takes 1.0 qts and I recommend you use the Mobil1 75w90 or 85w140 gear oil versus the 20w50 as it will shift much smoother. (you can run the gear oil 15-20,000 miles or 1 year).
As for the filter I recommend you get a Harley filter that is speced for your engine and has the correct filtration rating (mine is 5 micron).
A second filter choice would be a K&N but it should be the one with an anti-drain back valve. Also get a derby cover gasket in case you need it and 3 o-rings for the drain bolts
You will need a T-27 (not a T-25) torx bit for the derby cover screws. Be certain to mark the top hole of the derby cover with a piece of tape so you can return it to it's original position as the cover sometimes takes on the shape of the case and this will prevent leaks. I have re-used the orange rubber derby gasket 3 times. But have a new one in case. I also use some white permatex hydraulic sealer on the drain plugs. Torque the derby screws 100 INCH lbs in a star pattern. Do not over torque the drain plugs as they strip easily.
My primary uses 1.0qts and you can use the 20w50 or 10w40 (lots of guys prefer and use 10w40 Vtwin)
My 6 speed trans takes 1.0 qts and I recommend you use the Mobil1 75w90 or 85w140 gear oil versus the 20w50 as it will shift much smoother. (you can run the gear oil 15-20,000 miles or 1 year).
As for the filter I recommend you get a Harley filter that is speced for your engine and has the correct filtration rating (mine is 5 micron).
A second filter choice would be a K&N but it should be the one with an anti-drain back valve. Also get a derby cover gasket in case you need it and 3 o-rings for the drain bolts
You will need a T-27 (not a T-25) torx bit for the derby cover screws. Be certain to mark the top hole of the derby cover with a piece of tape so you can return it to it's original position as the cover sometimes takes on the shape of the case and this will prevent leaks. I have re-used the orange rubber derby gasket 3 times. But have a new one in case. I also use some white permatex hydraulic sealer on the drain plugs. Torque the derby screws 100 INCH lbs in a star pattern. Do not over torque the drain plugs as they strip easily.
Last edited by KBFXDLI; Feb 5, 2009 at 08:27 PM.
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