How bad is it drive aggressively on a cold engine?
A lot of times I'm late on my way to school and I drive a bit aggressively. I usually don't go over 3.5k rpms for the first couple minutes but after about 5 mins I start push it to around 5k rpms. Am I causing damage to my engine, and if so how bad? The temperature needle has barely started to move at around that time. Thanks in advance.