Case Study · 2024 Avante CN7 Hybrid
Hyundai Avante CN7 Hybrid Evans coolant conversion
“This is the seventh time fuel economy has exceeded 30 km/L since the Evans coolant change.”
Fuel-economy report from the 2024 Avante CN7 Hybrid customer
A customer-submitted journey reading. Fuel economy varies with driving conditions; this is not a controlled before-and-after test.
After choosing Evans for two previous vehicles, this customer returned with a new 2024 Avante CN7 Hybrid. Here are the customer’s economy record and the work carried out at NHC Motors.
01
The customer-reported 30.2 km/L
The dashboard photo sent after arriving home showed 30.2 km/L. The customer reported that this was the seventh time fuel economy had exceeded 30 km/L since the Evans coolant change.
The return visit mattered as much as the number. After using Evans in two previous vehicles, the customer requested the same service soon after taking delivery of this Avante.
02
Chosen again for a new car
This visit was for preventive care rather than a fault repair. The customer wanted to plan cooling-system care early in the ownership of the new vehicle.
An Evans conversion involves both the cost of the coolant and the work needed to remove the previous fluid. Returning with a third vehicle shows how this customer’s earlier experience informed the decision.
Cooling-system condition and intended ownership.
Remove old coolant and prepare for conversion.
Check the fluid and system after filling.
03
Access, preparation and coolant work
Protective covers were fitted, and intake components were removed as needed to reach the cooling lines. The work included hose connections, removal of the existing coolant and preparation for conversion.
A waterless conversion requires attention to fluid and moisture left in the system. Preparation depends on the vehicle’s pipework and cooling-system layout.
A refractometer was used to check the coolant during this job. Taking time over preparation and verification helps the installed coolant retain its intended properties.
04
Checking the coolant during completion
Evans states that residual water above 3% can lower the boiling point and reduce protective performance. Post-conversion checks are therefore part of the work.
For a hybrid, the intended cooling circuit and its fluid requirements need to be identified separately. Consultation starts with the vehicle’s layout and current condition.
Questions before booking
Does 30.2 km/L show a measured efficiency improvement?
It is the customer’s dashboard reading for that journey. Road conditions, temperature and driving style affect economy, so this record cannot establish a percentage improvement or a guaranteed result.
Can a new car receive an Evans conversion?
Some customers return with a new vehicle after using Evans before, as in this case. We discuss the fluid requirements, cooling circuit and warranty conditions before deciding whether to proceed.
How does this differ from a regular coolant change?
Converting to a waterless product requires management of the previous coolant and residual water. Preparation and checks depend on the cooling-system layout.
How much time and cost should I allow?
Fluid capacity, pipework and any cooling parts needing attention affect both. We provide an estimated schedule and cost after assessing the vehicle.
Product information: Evans High Performance · Evans FAQ
Planning to keep your car? Let us plan its coolant care.
We will assess the cooling system and your ownership plans, then discuss whether a conventional coolant service or an Evans conversion is suitable. Share the model, year and mileage so we can explain the scope and estimated cost.