speedy88 said:Just wondering, is there anyway to tell the difference between 5w30 and 10w30 once its in the engine? ie I want to know what type was put in. I dont think theres a way, but im hoping I'm wrong.
rcoolb2002 said:There is one sure way to tell. The following scenario describes this method.
- Take off the top oil fill lid.
- Place drain pan under car under the oil drain plug.
- Remove oil drain plug.
- Replace oil drain plug after no more oil is running out of the car.
- Fill engine with 5w30 or 10w30
- Replace engine oil cap.
After you have done this hopefully you will know what type of oil is in your car.