Transmission oil for a 05 RKCustom.
 

I am given two diffrent trans oil amounts in my service book. In the front of the book it saids it takes 32OZ. On the engine chapter is saids 22-24OZ. I am just draining the old fluid and going to replace it with fresh oil. But i just want to make sure. I even called a few harley shops. they said it is 22-04oz. I just want to make sure. This is for a 2005 Road king Custom. Thanks,Ben

I have an 07 RK and 32 oz. puts the tranny level exactly where it should be.

I'm not sure why the different amounts. I would just pour some in & check it with the dipstick until it's at the correct level. Then re-check it after to ride it a few miles.

22-24 oz. in the tranny.Check with the bike level.
32 oz. for the primary.

My primary takes 38 ozs.

put 24 oz and check it.

You are correct if your bike is '07 and newer.

The guys bike is an '05 and has a completely different trans than you do. He has a 5 speed, you have a Cruise Drive six speed.

My '02 is 20 to 24 oz. in the tranny. I'd put in about 20 oz. then check the dipstick after a few minutes. Then fill to the mark on the stick.

Northside. I am going with the 20-24Oz. It just sucks that a manuel that you should trust is wrong. Can you tell me how much oil your 02 takes? This is my first fluid change so i am not sure. Thanks, Ben

I put in 24 oz. last time I changed oil. Use the dipstick and you'll be fine. You just don't want to over fill so go easy. It also helps to have a good selection of funnels.