Max, from Grantham, visited the council's Mowbeck Way Street Scene HQ with his dad Martin after chatting to supervisor Rob Hughes as he walked into work.
Wearing high-viz gear and under close supervision, Max found out all about the lorry and its controls - and had a demo of the way it compacts household waste and makes room for more.
Max said: "I like it when the bins go upside down. My favourite part today was when the back opened. I've got loads of toy lorries at home - I like all the road sweepers too."
The £169,000 Dennis Eagle Euro 6 can hold 11 tonnes of rubbish and weighs 15 tonnes empty.
The six-year-old was given the tour by Cabinet Member for Commercial and Operations, Cllr Dr Peter Moseley, and Street Scene Supervisor Mark Miller, accompanied by Rob Hughes.
Cllr Dr Moseley said: "It was a pleasure to meet young Max, who is very knowledgeable about the vehicles we use to take away everyone's household waste.
"It was the first time that I had seen our new lorry too. It hasn't even been out on the rounds yet, so this was a real VIP experience for all of us. I hope Max will be inspired to follow a career in waste management - it's a fascinating area and vital to protecting the local environment as well as the planet's resources."
Max's dad added: "Max had a great time. Thanks go to South Kesteven for arranging it all. It was a real bonus for him to see something so new and have a go at the controls. Rob, Mark and the team made Max's day."