Several have reported very nasty fork oil coming out after just a few thousand miles. In my case I am wanting to change to a heaver wight fluid to stiffen up the front end. The stock "E" fluid is suppose to be 10W. The SE Performance Fork Oil "Heavy" is suppose to be 15W which will slightly stiffen the front suspension and improve steering and ride while reducing bottoming out. Then there the SE Racing Fork Oil "Extra Heavy" is suppose to be 20W. Some say this is to stiff for a touring bike.