You are correct on the total oil capacity being 5.3 quarts but Yamaha says for an oil and filter change, you only put in 4.3 quarts. This is from both the service manual and owner's manual. Most people just put in 4 quarts for an oil change since that .3 is not really enough to matter. If 5 quarts works for you and you don't mind paying for an extra quart of oil at every change, then by all means, keep on doing it.Thanks Gadgetman but I think I'll stick with the service manual on this one.
The total engine oil capacity is 5.3 quarts.
I use a 5qt.jug and it puts the oil right at the top of the hash marks.