I have a grasshopper 223 kohler 23 hp engine and it is air cooled. Anyway here in oklahoma it can get extreamly hot 110 degrees plus during the day and i can be running this machine between 3-4 hours at a time during the week not putting a lot of hours on it per week but when i do its on big properties. Anyway i have herd people talking about putting on an over sized oil cooler on their machines. Does anyone know where i could find one of these? I would just like to protect my investment a little if i can.