2022 T6.1 Ocean Fuel Consumption

[SusiBus]

The wider 235 offers some wheel rim protection because the rubber extends slightly beyond the rim. The tyre sidewall, being softer, bows out a little, hence assisting rim Protection.
The 215 is a pure van tyre. Stronger straight up side walls. Give more mpg, last longer, but give a crap ride.

 

[Wildcamper]

Very happy with the ride on my 215 Agilis.

 

[WelshGas]

Very happy with the ride on my 215 Agilis.

If I'm correct you have a LWB conversion?
What is the MGW of your vehicle?

 

[Wildcamper]

Correct. 3000kg.