Ford Fiesta ST Oil Cooler Kit 2014+

Don't Let Oil Temps Stop the Fiesta! Mishimoto Oil Cooler R&D, Part 2: Product Testing and Data Crunch

July 21, 2015

Ford Fiesta ST Oil Cooler Kit 2014+

# teammishi, oil cooler, mishimotoengineering, mishimoto, ford, FiST, fiestast, fiesta, featured, ecoboost, cooling

Interested in purchasing this awesome oil cooler system? Check out our product page for more details!

Mishimoto Ford Fiesta ST Oil Cooler Kit

Testing time! It's always fun to see the results when you make changes to your vehicle, whether bolting on a new wheel and tire combo, or installing a new set of dampers. In this case, we are expecting our Fiesta ST oil cooler setup to drop fluid temperatures by a substantial margin during our on-road testing.

Testing Setup and Conditions

Testing the stock Fiesta ST oil cooler is relatively simple. Only one temperature and pressure will need to be monitored, so we can utilize our sandwich plate sensor adapter shown below.

Mishimoto oil sensor adapter sandwich plate

To collect data with the stock Ford Fiesta oil cooler, we installed this plate along with one of our temperature sensors and one of our fluid pressure sensors. These would provide a baseline for oil temperatures produced with the stock liquid-to-liquid heat exchanger.

Testing the

Mishimoto Ford Fiesta ST Oil Cooler Kit

We've been posting on the Fiesta ST forums for some time now, talking about our upcoming products (Fiesta ST aluminum radiator and Fiesta ST oil catch can system), reading through build threads, and requesting recommendations from the community. One of the most requested components is a direct-fit Fiesta oil cooler solution. Luckily for ST enthusiasts, we are extremely familiar with this product, as validated by the 21 direct-fit kits our engineering team has designed and tested thus far.

ST Plans

So what do we have planned for our Fiesta ST oil cooler kit? We had a few requests for a radiator/oil cooler combination kit with bracket mounts fixed to the radiator. While this is a good idea, it has a few flaws. First, the AC condenser sits directly in front of the radiator. Designing a mount to go around the condenser would be quite a challenge and would