Yes a lot of oil goes on, but most flings off (hence the mess) taking the grit with it - this is the main advantage of the Scottoiler. I can guarantee using a standard lube/wax you will get a lot more grit carried on your chain than you would with a Scottoiler.

Inspecting your chain is good practice weather you have a Scottoiler or not, I have one fitted and always inspect the chain weekly. Mines done just over 20000 miles on OE chain and sprockets and still going strong with a Scottoiler, so its already paid for itself. GULG has done even more I think.

Each to their own, but the "mess" (which is a lot easier to clean off than lube) is small price to pay for getting twice as many miles out of your chain set IMHO.

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