it's not about how much or how high you mod your car .. it's about your driving style and also our ambient temperature ... the more often you rev the car and maintain high rpm the hotter the oil gets .. to keep the oil and engine cooler you need an oil cooler ... have tried 4th gear 7k rpm for 5 minutes before with a small 3 row oil cooler and the oil temp shot up to 120deg celcius .. cannot imagine without .. hahahah but also once again i need to stress oil/engine has an optimum working temp ... if oil too cool also it's not heated up well enuf to lubricate/protect the engine ... oh well my lingam opinion :rolleyes: