Mike, We find striking a deal with your oil supplier to take it away FOC always works for us.
We are currently using Renault and find that provided you use them solely for oil, they are more than happy to accommodate.

I mean, if you are purchasing £2000 upwards a year on oil, if they want the business why shouldn't they show some loyalty back.

We`ve done this with all our oil suppliers over the last 25 years and never once paid for oil disposal.

Get grilling those reps people!