Hi everybody, I just bought a new corolla se 2.0 liter engine 6spd manual. This morning is -4 and the windows are frosted so started the engine and hear loud rattle noise coming from the engine for about 3-5 seconds. Sounds like no oil pressure. I used the car again through the day and no noise. Is this normal for a new car to have this rattle when starting in the morning ? I bought the car here in Canada about 4 hrs drive from home here. I didn't notice this noise at the dealership but it had been run before I got there. Any help would be appreciated.