Roy

Hello everyone, Im gonna do a oil change next week hopefully but I was wondering if I could use Castrols 5-40 oil instead of 5-30, my dad have a barrel at the workshop and he tells me that it will be no problem using it.

So is it okey?


Thank you

jahudso2

You might notice a slight decrease in fuel economy, but other than that, you will be fine.

Roy

Thank, then Ill save my oil money by using my dads stuff, and add the oil money to the gas instead

Nuke

Are you doing this on a GT which is spec'd for 5W20 or a V6 which is spec'd at 5W30? Going up from 20 to 30 or 30 to 40 probably wouldn't hurt but I wouldn't go from 5W20 to 5W40.

Roy

This is a GT, Why wouldnt you go to 40 with the GT?

Oh btw, what should I use to clean the MAF sensor and the TB?

Planning on doing that at the same time, my idle was a little jumpy yesterday 500-1000 so I was thinking its maybe time to clean them both.

Roy

https://mustangforums.com/forum/4-6-...ive-shaft.html

I just found that page, post nr 5.


That was really interesting.