Ford specifies to use their "Motorcraft 5W-20 Premium Synthetic Blend" in the 5.0L Coyote, but specifies to use their "Motorcraft 5W-50 Full Synthetic" in the Boss 302. The 2015 Coyote is basically a Boss 302 without the same intake manifold.
Some guys report engine ticking (aka "BBQ igniter tick") after the initial oil change when they use the 5W-20, so wondering if the ticking when hot is because of the thinner oil. Why couldn't the 5W-50 be used instead, or even a 5W-30 that meets the Ford oil spec (if there is one out there)?
Is it really necessary to run 5W-20?
Some guys report engine ticking (aka "BBQ igniter tick") after the initial oil change when they use the 5W-20, so wondering if the ticking when hot is because of the thinner oil. Why couldn't the 5W-50 be used instead, or even a 5W-30 that meets the Ford oil spec (if there is one out there)?
Is it really necessary to run 5W-20?