Miguel Oliveira mastered the treacherous conditions at Aragon to remain as the leading Moto3 rider at the Spanish circuit this afternoon.

The Portuguese contender ended FP2 at the head of affairs after earlier topping FP1 this morning on his Suter Honda.

Oliveira and Adrian Martin both crashed in FP1, forcing the session to be terminated and causing a delay to the opening MotoGP and Moto2 practice slots as marshals worked to clear oil and debris from the track.

However, Estrella Galicia ace Oliveira - currently ninth in the championship standings - showed no ill-effects as he took the fastest lap in a time of 2m 16.726s from British rider Danny Kent, who was just 0.183s behind on his Red Bull KTM.

Zulfahmi Khairuddin was third quickest, 0.271s off Oliveira's best time, with series leader Sandro Cortese next on the Red Bull KTM, 0.758s behind in the soaking wet conditions.

Jasper Iwema (FGR Honda) and Luis Salom (Kalex KTM) rounded out the top six.

Cortese's title adversary, Maverick Vinales, was down in 13th position on the Avintia Blusens FTR Honda, almost two seconds in arrears.

Romano Fenati was 17th fastest with Alex Rins 22nd.

John McPhee ended the session in 21st position, despite slipping off his KRP Honda, while Mahindra Racing's Danny Webb concluded the afternoon in 30th.

Friday practice (2):
1. Miguel Oliveira POR (Suter Honda) 2m 16.726s
2. Danny Kent GBR (KTM) 2m 16.909s
3. Zulfahmi Khairuddin MAL (KTM) 2m 16.997s
4. Sandro Cortese GER (KTM) 2m 17.484s
5. Jasper Iwema NED (FGR Honda) 2m 17.523s
6. Luis Salom SPA (Kalex KTM) 2m 17.565s
7. Niklas Ajo FIN (KTM) 2m 17.602s
8. Jonas Folger GER (Kalex KTM) 2m 17.665s
9. Brad Binder RSA (Kalex KTM) 2m 17.817s
10. Luca Amato GER (Kalex KTM) 2m 17.906s
11. Jack Miller AUS (Honda) 2m 18.244s
12. Toni Finsterbusch GER (Honda) 2m 18.555s
13. Maverick Vi?ales SPA (FTR Honda) 2m 18.706s
14. Efren Vazquez SPA (FTR Honda) 2m 18.781s
15. Alex Marquez SPA (Suter Honda) 2m 18.812s