What do you guys thinking on the Ford Recommended Motorcraft 10W40 Synthetic oil?
It will soon be my 3rd oil change and trying to decide if I should just continue sticking with the Motorcraft or to switch it up.
I heard if you're not constantly racing down the track, the 10W40 does the job. On the other hand, if driven hard frequently, Amsoil or Royal Purple would be the better bet?
Maybe I am lost but thought they state 5-20W Multi-Blend for the GT. Unless racing? I am now interested even more in this posting.
I never understood why the 50W for racing verses 20W driving? Long driving would heat up more in the long run..
What do you guys thinking on the Ford Recommended Motorcraft 10W40 Synthetic oil?
It will soon be my 3rd oil change and trying to decide if I should just continue sticking with the Motorcraft or to switch it up.
I heard if you're not constantly racing down the track, the 10W40 does the job. On the other hand, if driven hard frequently, Amsoil or Royal Purple would be the better bet?
Since when did ford change the oil recommendations to 10W 40. I thought it was standard 5W 20 or 5W 50 for Boss or track pac on Gt models.
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