switch to re-refined oil is one of the green decisions Nestlé Waters and City of Phoenix have made to be more sustainable and reduce greenhouse gas emissions. This is significant because, as any fleet maintenance technician will tell you, oil is the lifeblood of an engine. Re-refined oil is helping fleets protect engines, protect the environment and attract or keep eco-responsible customers at costs comparable to oil made from virgin crude. That is a change for the better.