Italian tanker captures in the Mediterranean

What if the Italian Navy tried to capture Mediterranean tankers instead of sinking them?

Capturing a tanker from a defended convoy would be difficult, and Malta-bound aviation fuel would help without solving Italy's naval fuel shortage.

Boarding a tanker inside a defended convoy would first require the Italian force to isolate it from the escorts. British ships might sink or scuttle a prize rather than let its cargo reach the enemy. The tankers on the route were also likely to carry aviation fuel for Malta rather than the bunker fuel the Italian fleet most needed. A successful capture could provide a useful local windfall, but neither the method nor the cargo would solve Italy's strategic fuel shortage.