If you are that worried about not getting credit for your diagram why don't you add your name or web link to the bottom like all the porn sites do with their pictures. This way if it is viewed people will frequent your web site to purchase equipment.
As for me, you just turned me off to your products and I will not buy from you because I think it is poor taste to worry about such trivial things. My first impression of you is you are just out to make a buck IMHO. You probably made the picture to help people sort out their
oil cooler problems to bad you can't keep it that way and are instead worried about such petty things.