I have been running mine since early last year. I consider it one of the most time saving and effective little mods you can make.
Prior to that I performed a once a week chain cleaning and lubing ritual.
I find the Scottoiler to be a most effective yet simple answer to the question of keeping our chains lubed and clean.
My chain is now never "dry" always kept just perfectly lubed.
When you use the spray on stuff the chain seems to be dry and lacking lubrication 100 miles later.
As to whether the Scottoiler really adds significant life to our chains is up for question. I run a 530 chain and I hope to get at least five thousand more miles that the first chain. (That would be 25K) I have not heard of anyone getting much more than 20K out of a stock chain yet.
Even if the Scottoiler does not extend the mileage on a chain it takes the need to do a ritual chain lube once a week if you ride a lot or if you are touring on a daily basis.
