I have heard people say they don't have the oil drain before. Seems odd to me that they wouldn't. Could you take a picture of the bottom of the engine?
I like to have them personally, but they aren't necessary since 95% of the oil will drain from the side plug anyway. The trick is to make sure you ride and heat up/mix up that oil so all of the sludge is suspended in the oil when you drain it. That way you get most of it out and are just left with a small bit left in the sump.
I like having the drain on the bottom because I am OCD and want all of the oil out of the engine. Plus, I have a sump drawn oil cooler, which replaces the screen, spring, and cap and locates them in a housing on one of the oil lines. It would be way more work to drain the oil if I didn't have that bottom bolt.
|