Sorry for the late reply. I don't own the maxus g10, only tested the MPV. Hope to see China cars expand further 1 day.

Paul Tan website info mostly never tested in full details as they are nothing more than just amateur bloggers.

For MPV that big, you're getting 13L/100km or 7.6-7.7km/L is considered good. You just keep the MPV technical part original, don't bother to replace turbocharger or anything that will void warranty or affect trade in value. Compared to Sorento 2.4L engine which is getting only 6.9km/L in city driving.

Ignore that @wkc5657 that doesn't know how turbocharger operates, he should read wikipedia asap. If turbocharger works like his dumb concept that operates at all rpm, the air intake would create back pressure causing insufficient oxygen volume with too much unburned fuel which leads to serious buildup clogging the combustion chamber.

Correction to his concept, Peak torque of turbocharger is not fixed, if situation allows, it could be achieved at turbocharger minimum operating rpm for example 1800. Normally within 1800~4500rpm.