What oil grade to use on a 2000 Mustang GT?

 

Hello and welcome to the forums. This question is one that has been answered DOZENS of times on most every Mustang forum. The short answer is 5w-30. For more info, click on the Search button on top of the screen and you will find a plethura of information about this topic.

 

5W-30 or 5W-20 if it's a lower mile engine. If possible, use a good full synthetic.

 

Here are some links thatll help you. this question has been answered 903482109432809324870932489083240923 times.

https://mustangboards.com/modular-4-...?highlight=oil
https://mustangboards.com/the-lounge...?highlight=oil
https://mustangboards.com/the-lounge...?highlight=oil