I follow what's in the owners manual which is basically what it has in the shop manual and what the dipstick indicates is that with three quarts i am right at the high mark. I have never3.9 quarts oil and filter change.
I use the entire 4 qts.
Do you have an owner's manual???
The dipstick is NOT screwed in for oil measurement.
The dipstick sits on top of the threads, with VTX vertical for the measurement.
The oil quantity is the important item, whether the stick is right or wrong.
I have thought about doing the file thing both ways but i think i will do it with the bike vertical. Definitely going to put the 4 quarts in just to be safe even though i have never had a problem.So after an oil and filter change with 4 quarts of oil having been put into the engine---
then you straddle the X, hold it vertical and with the stick clean, you drop it in the hole.
You pull it out and examine the stick and if it differs you can file a mark on it.
Some have marked the stick when it is on the kickstand.
A quick and dirty trick that works.
If you had any oil consumption you could have had a problem.
Some twit at the dealership did not put 4 qts oil in my engine when purchased.
I checked the level on the 2nd or 3rd day.
I have done 43 oil-filter changes.
Or just Trike it!!!!Get a friend to straddle the front wheel and help hold the bike upright while draining. Or tie off the handlebars and the back somehow to keep it vertical. You can make a stand easily from 2x4 scraps and a box of long screws, but you will have to buy a lift/ jack to get it in the air. Something you really should consider for the long run.
Check the owners manual...I have an 03 1800s and have owned the bike since 2007 with only 1200 miles on it. When ever I do an oil and filter change I am only able to put in 3 quarts of oil. It's done in the garage so I know the bike is level and the dipstick indicates it's at the proper level. Are the dipsticks for the 1800 and 1300 the same and if not is it possible that the dipstick I have is for the 1300 and not the 1800. I am at 20,000 miles with no issues with the bike just concerned with the oil capacity.